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Manufacturing
9 min read
Areas of Expertise :
Aerosols, Analytical Chemistry, Toxicology, Consumer Product Safety, Class Action
Published Date:
Last Modified Date:
Jurisdiction:
Federal. Second Circuit
The Unilever dry shampoo benzene lawsuit arose from allegations that certain aerosol dry shampoo products sold under Unilever brands contained, or were at risk of containing, benzene. The case is commonly associated with Little et al. v. Unilever United States, Inc., Case No. 3:22-cv-01189, in the U.S. District Court for the District of Connecticut. The consumer claims involved dry shampoo products sold under Dove, Nexxus, Suave, TIGI product lines including Bed Head and Rockaholic, and TRESemmé.
The lawsuit began before Unilever announced its October 2022 voluntary recall, but the recall later became a major factual event in the case record. The dispute is best described as an economic-loss consumer class action tied to alleged product contamination and later recall activity. It is not a proven personal-injury cancer case. Plaintiffs alleged that consumers bought products they would not have purchased, or would have paid less for, had they known about the alleged presence or risk of benzene.
Defendants disputed the allegations and maintained defenses to the claims. The litigation focused on product testing evidence, consumer disclosures, Article III standing, class definition, damages, product scope, and whether the alleged economic injury could be proven across the proposed class.
Consumers filed a proposed class action against Unilever in the U.S. District Court for the District of Connecticut. The complaint alleged that certain aerosol dry shampoo products were contaminated with benzene. The products at issue were sold under several Unilever consumer brands, and plaintiffs alleged that purchasers suffered economic injury because the products did not meet consumer expectations for aerosol personal-care products.
The lawsuit was framed mainly around consumer-protection and economic-loss claims, rather than personal-injury claims based on a diagnosed illness. Plaintiffs alleged that consumers would not have purchased the products, or would have paid less for them, if they had known about the alleged benzene issue. The filing began a federal dry shampoo benzene class action involving laboratory testing, product scope, damages models, and classwide proof.
Unilever announced a voluntary recall of select lot codes of dry shampoo aerosol products produced before October 2021. The recall covered specific Dove, Nexxus, Suave, TIGI product lines including Bed Head and Rockaholic, and TRESemmé dry shampoo products. Unilever stated that the recall was based on potentially elevated levels of benzene.
The recall notice stated that an internal investigation identified the aerosol propellant as the source. Unilever also stated that, based on an independent health hazard evaluation, daily exposure to benzene at the detected levels in the recalled products would not be expected to cause adverse health consequences. The recall connected the consumer claims to product-safety communications, lot-code identification, aerosol propellant concerns, and later settlement discussions.
After benzene-related claims were filed over Unilever aerosol products, some plaintiffs sought centralized handling through multidistrict litigation procedures. The coordination request asked whether lawsuits involving different aerosol product categories should proceed together because they shared broad allegations about benzene contamination, recalls, and consumer disclosures.
The Judicial Panel on Multidistrict Litigation declined to centralize the Unilever aerosol product cases. The Panel found that the cases shared some factual similarities but involved different product categories, proposed purchaser classes, recall histories, and regulatory issues. As a result, the dry shampoo case continued outside an MDL structure, with its own record addressing product scope, class certification, and settlement review.
The amended consolidated complaint refined the plaintiffs’ allegations involving Unilever dry shampoo products. It also added or continued allegations involving Aeropres Corporation, the alleged aerosol propellant supplier, and Voyant Beauty, LLC, the alleged contract manufacturer. The pleading referenced third-party laboratory testing allegations, including testing attributed to Valisure and Impact Analytical, to support claims that certain products contained benzene or carried a benzene-contamination risk.
The amended pleading also addressed more than test results. Plaintiffs raised claims involving consumer disclosures, product labeling, warranty theories, unjust enrichment, and state consumer-protection statutes. This stage clarified the evidence plaintiffs intended to rely on and placed attention on whether alleged benzene findings could be tied to specific dry shampoo products, lot codes, brands, manufacturing periods, and purchase periods.
Plaintiffs moved for preliminary approval of a proposed class settlement involving covered Unilever dry shampoo products sold under the Suave, TIGI, TRESemmé, Dove, and Nexxus brands. The proposed settlement contemplated a $3.625 million non-reversionary cash fund to resolve consumer claims connected to the alleged benzene issue. The settlement materials involved Unilever, Aeropres, and Voyant as defendants.
The request for preliminary approval did not represent a finding that any defendant was liable. It presented a negotiated resolution designed to address the cost, risk, and uncertainty of continued class action litigation. The motion placed class definition, notice, settlement value, product coverage, claims administration, and release language before the court for review.
The court denied preliminary approval of the proposed settlement without prejudice. The ruling focused on Article III standing and the proposed settlement class definition. The court raised concerns that the class period and covered-product list were broader than the contamination evidence presented in the record.
The court noted that the proposed class period began in 2014, while the evidence discussed by the court showed alleged contamination beginning in January 2018. The court also questioned whether the proposed covered-product definition included products not shown by third-party testing to be contaminated. The ruling did not decide the underlying merits of the benzene allegations. Instead, it required the parties to address whether the proposed settlement class matched the evidence before the court.
Court:
United States District Court for the District of Connecticut
Case Name:
Little v. Unilever United States, Inc.
Benzene
Cosmetics
Aerosol Can
Contamination
Personal Care Products
Product Recalls
Product Testing
Laboratory Testing
Consumer Protection
The Unilever dry shampoo benzene lawsuit arose from allegations that certain aerosol dry shampoo products sold under Unilever brands contained, or were at risk of containing, benzene. The case is commonly associated with Little et al. v. Unilever United States, Inc., Case No. 3:22-cv-01189, in the U.S. District Court for the District of Connecticut. The consumer claims involved dry shampoo products sold under Dove, Nexxus, Suave, TIGI product lines including Bed Head and Rockaholic, and TRESemmé.
The lawsuit began before Unilever announced its October 2022 voluntary recall, but the recall later became a major factual event in the case record. The dispute is best described as an economic-loss consumer class action tied to alleged product contamination and later recall activity. It is not a proven personal-injury cancer case. Plaintiffs alleged that consumers bought products they would not have purchased, or would have paid less for, had they known about the alleged presence or risk of benzene.
Defendants disputed the allegations and maintained defenses to the claims. The litigation focused on product testing evidence, consumer disclosures, Article III standing, class definition, damages, product scope, and whether the alleged economic injury could be proven across the proposed class.
Consumers filed a proposed class action against Unilever in the U.S. District Court for the District of Connecticut. The complaint alleged that certain aerosol dry shampoo products were contaminated with benzene. The products at issue were sold under several Unilever consumer brands, and plaintiffs alleged that purchasers suffered economic injury because the products did not meet consumer expectations for aerosol personal-care products.
The lawsuit was framed mainly around consumer-protection and economic-loss claims, rather than personal-injury claims based on a diagnosed illness. Plaintiffs alleged that consumers would not have purchased the products, or would have paid less for them, if they had known about the alleged benzene issue. The filing began a federal dry shampoo benzene class action involving laboratory testing, product scope, damages models, and classwide proof.
Unilever announced a voluntary recall of select lot codes of dry shampoo aerosol products produced before October 2021. The recall covered specific Dove, Nexxus, Suave, TIGI product lines including Bed Head and Rockaholic, and TRESemmé dry shampoo products. Unilever stated that the recall was based on potentially elevated levels of benzene.
The recall notice stated that an internal investigation identified the aerosol propellant as the source. Unilever also stated that, based on an independent health hazard evaluation, daily exposure to benzene at the detected levels in the recalled products would not be expected to cause adverse health consequences. The recall connected the consumer claims to product-safety communications, lot-code identification, aerosol propellant concerns, and later settlement discussions.
After benzene-related claims were filed over Unilever aerosol products, some plaintiffs sought centralized handling through multidistrict litigation procedures. The coordination request asked whether lawsuits involving different aerosol product categories should proceed together because they shared broad allegations about benzene contamination, recalls, and consumer disclosures.
The Judicial Panel on Multidistrict Litigation declined to centralize the Unilever aerosol product cases. The Panel found that the cases shared some factual similarities but involved different product categories, proposed purchaser classes, recall histories, and regulatory issues. As a result, the dry shampoo case continued outside an MDL structure, with its own record addressing product scope, class certification, and settlement review.
The amended consolidated complaint refined the plaintiffs’ allegations involving Unilever dry shampoo products. It also added or continued allegations involving Aeropres Corporation, the alleged aerosol propellant supplier, and Voyant Beauty, LLC, the alleged contract manufacturer. The pleading referenced third-party laboratory testing allegations, including testing attributed to Valisure and Impact Analytical, to support claims that certain products contained benzene or carried a benzene-contamination risk.
The amended pleading also addressed more than test results. Plaintiffs raised claims involving consumer disclosures, product labeling, warranty theories, unjust enrichment, and state consumer-protection statutes. This stage clarified the evidence plaintiffs intended to rely on and placed attention on whether alleged benzene findings could be tied to specific dry shampoo products, lot codes, brands, manufacturing periods, and purchase periods.
Plaintiffs moved for preliminary approval of a proposed class settlement involving covered Unilever dry shampoo products sold under the Suave, TIGI, TRESemmé, Dove, and Nexxus brands. The proposed settlement contemplated a $3.625 million non-reversionary cash fund to resolve consumer claims connected to the alleged benzene issue. The settlement materials involved Unilever, Aeropres, and Voyant as defendants.
The request for preliminary approval did not represent a finding that any defendant was liable. It presented a negotiated resolution designed to address the cost, risk, and uncertainty of continued class action litigation. The motion placed class definition, notice, settlement value, product coverage, claims administration, and release language before the court for review.
The court denied preliminary approval of the proposed settlement without prejudice. The ruling focused on Article III standing and the proposed settlement class definition. The court raised concerns that the class period and covered-product list were broader than the contamination evidence presented in the record.
The court noted that the proposed class period began in 2014, while the evidence discussed by the court showed alleged contamination beginning in January 2018. The court also questioned whether the proposed covered-product definition included products not shown by third-party testing to be contaminated. The ruling did not decide the underlying merits of the benzene allegations. Instead, it required the parties to address whether the proposed settlement class matched the evidence before the court.
Analytical Chemistry Expert Witness
Analytical chemistry and laboratory testing experts may evaluate the methods used to detect benzene in aerosol dry shampoo products. Their work can address sampling procedures, detection limits, batch variability, chain of custody, and whether test results can be tied to specific products, lot codes, brands, or time periods.
Toxicology Expert Witness
Toxicology and exposure assessment experts may evaluate benzene exposure pathways, dose, duration, inhalation risk, and background environmental exposure. In a case like this, their analysis can help separate alleged contaminant detection from exposure levels, health-risk conclusions, and claimed injury theories.
Aerosol Product Manufacturing Expert Witness
Aerosol formulation and manufacturing experts may address how dry shampoo aerosol products are made, how propellants are sourced, and how contaminants can enter a finished aerosol product. Their review may include supplier records, production documents, quality-control systems, and recall-scope issues.
Cosmetics Regulatory Expert Witness
Cosmetics and FDA regulatory experts may explain the regulatory framework for cosmetic products, voluntary recalls, FDA-posted recall notices, company recall communications, and adverse-event reporting. Their analysis can help distinguish a recall notice from a complaint allegation, settlement position, or court finding.
Consumer Survey Expert Witness
Consumer survey and marketing experts may evaluate whether product-safety information would have affected purchasing decisions. In a consumer class action, this type of analysis may relate to materiality, consumer expectations, price-premium theories, labeling claims, and whether alleged omissions can be evaluated through common evidence.
Damages Expert Witness
Damages and class certification experts may assess refund models, price-premium models, retail pricing data, proof-of-purchase issues, and classwide damages methods. Their analysis may also address whether the proposed class definition aligns with the products, time periods, and injury theory at issue.
Plaintiffs framed the case around alleged purchase-related economic harm.
Plaintiffs alleged that consumers paid for aerosol dry shampoo products that were not worth the price paid because of the alleged benzene issue. Their claims focused on product value, consumer expectations, labeling, disclosures, and whether purchasers had a valid economic-injury theory tied to the products at issue.
The voluntary recall does not equal an admission of liability.
Unilever’s voluntary recall is a factual event in the case record, but a recall notice is not the same as a court finding that all covered products were defective, contaminated, or legally actionable. A careful case summary should separate recall language, complaint allegations, settlement arguments, and judicial rulings.
Product scope and class period were central to settlement review.
The court’s February 2026 ruling addressed the proposed settlement class definition, including the products and time period covered by the proposal. A class definition that includes too many products, too long a time period, or purchasers without a concrete injury can raise Article III standing and Rule 23 issues.
Benzene testing evidence had to connect to specific products and purchasers.
Plaintiffs relied on third-party laboratory testing allegations to support their contamination theory, but classwide proof required more than isolated test results. The record called for closer attention to which lots were tested, which products tested positive, when the tested products were manufactured, and whether the testing supported broader classwide conclusions.
Multiple defendants affected the product-supply and manufacturing issues.
Although the case is often discussed as the Unilever dry shampoo benzene lawsuit, later pleadings and settlement materials also involved Aeropres Corporation and Voyant Beauty, LLC. This distinction affects how the case is described when discussing alleged responsibility for propellant sourcing, manufacturing, product distribution, settlement releases, and litigation defenses.
The Unilever dry shampoo benzene litigation developed from allegations involving select aerosol dry shampoo products, third-party benzene testing, Unilever’s voluntary recall, and consumer claims based on alleged economic loss. The case record focused on whether the alleged contamination evidence aligned with the products, lot codes, brands, manufacturing periods, purchase periods, and consumers included in the proposed class.
The court’s preliminary settlement review addressed Article III standing, product scope, class period, and whether the proposed settlement class matched the evidence presented. The ruling did not decide whether the defendants were liable. Instead, it required a closer connection between the proposed settlement class and the contamination evidence before the settlement could move forward in that form.
What happened with the dry shampoo products in the Unilever benzene case?
The case focused on aerosol dry shampoo products that consumers alleged contained, or were at risk of containing, benzene. The events included third-party testing allegations, concerns about the aerosol propellant used in certain products, Unilever’s October 2022 voluntary recall of select lot codes, and later court review of whether the proposed settlement covered the right products and time period.
Which Unilever dry shampoo brands were named in the benzene recall and lawsuit?
The recall and litigation involved dry shampoo products sold under Dove, Nexxus, Suave, TIGI product lines including Bed Head and Rockaholic, and TRESemmé. The recall applied to select lot codes of aerosol dry shampoo products produced before October 2021, not every Unilever hair-care product.
Did the court find Unilever liable for benzene in dry shampoo products?
No. The public record does not show a final liability finding against Unilever in the dry shampoo class action. The proposed settlement was a negotiated resolution, and the court later denied preliminary approval without prejudice because of concerns about standing, class period, and product scope.
How did benzene testing affect the Unilever dry shampoo class action?
Product testing formed part of the case record because the benzene allegations depended on whether testing could connect alleged contamination to specific dry shampoo products, brands, lot codes, and time periods. Later settlement review focused partly on whether the proposed covered products and class period matched the contamination evidence presented to the court.
Why did the court deny preliminary approval of the Unilever dry shampoo settlement?
The court found problems with the proposed settlement class definition. In particular, the court questioned whether the class period reached too far back compared with the evidence of alleged contamination and whether the covered-product definition included products not shown by third-party testing to be contaminated.
Analytical Chemistry Expert Witness
Analytical chemistry and laboratory testing experts may evaluate the methods used to detect benzene in aerosol dry shampoo products. Their work can address sampling procedures, detection limits, batch variability, chain of custody, and whether test results can be tied to specific products, lot codes, brands, or time periods.
Toxicology Expert Witness
Toxicology and exposure assessment experts may evaluate benzene exposure pathways, dose, duration, inhalation risk, and background environmental exposure. In a case like this, their analysis can help separate alleged contaminant detection from exposure levels, health-risk conclusions, and claimed injury theories.
Aerosol Product Manufacturing Expert Witness
Aerosol formulation and manufacturing experts may address how dry shampoo aerosol products are made, how propellants are sourced, and how contaminants can enter a finished aerosol product. Their review may include supplier records, production documents, quality-control systems, and recall-scope issues.
Cosmetics Regulatory Expert Witness
Cosmetics and FDA regulatory experts may explain the regulatory framework for cosmetic products, voluntary recalls, FDA-posted recall notices, company recall communications, and adverse-event reporting. Their analysis can help distinguish a recall notice from a complaint allegation, settlement position, or court finding.
Consumer Survey Expert Witness
Consumer survey and marketing experts may evaluate whether product-safety information would have affected purchasing decisions. In a consumer class action, this type of analysis may relate to materiality, consumer expectations, price-premium theories, labeling claims, and whether alleged omissions can be evaluated through common evidence.
Damages Expert Witness
Damages and class certification experts may assess refund models, price-premium models, retail pricing data, proof-of-purchase issues, and classwide damages methods. Their analysis may also address whether the proposed class definition aligns with the products, time periods, and injury theory at issue.
Plaintiffs framed the case around alleged purchase-related economic harm.
Plaintiffs alleged that consumers paid for aerosol dry shampoo products that were not worth the price paid because of the alleged benzene issue. Their claims focused on product value, consumer expectations, labeling, disclosures, and whether purchasers had a valid economic-injury theory tied to the products at issue.
The voluntary recall does not equal an admission of liability.
Unilever’s voluntary recall is a factual event in the case record, but a recall notice is not the same as a court finding that all covered products were defective, contaminated, or legally actionable. A careful case summary should separate recall language, complaint allegations, settlement arguments, and judicial rulings.
Product scope and class period were central to settlement review.
The court’s February 2026 ruling addressed the proposed settlement class definition, including the products and time period covered by the proposal. A class definition that includes too many products, too long a time period, or purchasers without a concrete injury can raise Article III standing and Rule 23 issues.
Benzene testing evidence had to connect to specific products and purchasers.
Plaintiffs relied on third-party laboratory testing allegations to support their contamination theory, but classwide proof required more than isolated test results. The record called for closer attention to which lots were tested, which products tested positive, when the tested products were manufactured, and whether the testing supported broader classwide conclusions.
Multiple defendants affected the product-supply and manufacturing issues.
Although the case is often discussed as the Unilever dry shampoo benzene lawsuit, later pleadings and settlement materials also involved Aeropres Corporation and Voyant Beauty, LLC. This distinction affects how the case is described when discussing alleged responsibility for propellant sourcing, manufacturing, product distribution, settlement releases, and litigation defenses.
The Unilever dry shampoo benzene litigation developed from allegations involving select aerosol dry shampoo products, third-party benzene testing, Unilever’s voluntary recall, and consumer claims based on alleged economic loss. The case record focused on whether the alleged contamination evidence aligned with the products, lot codes, brands, manufacturing periods, purchase periods, and consumers included in the proposed class.
The court’s preliminary settlement review addressed Article III standing, product scope, class period, and whether the proposed settlement class matched the evidence presented. The ruling did not decide whether the defendants were liable. Instead, it required a closer connection between the proposed settlement class and the contamination evidence before the settlement could move forward in that form.
What happened with the dry shampoo products in the Unilever benzene case?
The case focused on aerosol dry shampoo products that consumers alleged contained, or were at risk of containing, benzene. The events included third-party testing allegations, concerns about the aerosol propellant used in certain products, Unilever’s October 2022 voluntary recall of select lot codes, and later court review of whether the proposed settlement covered the right products and time period.
Which Unilever dry shampoo brands were named in the benzene recall and lawsuit?
The recall and litigation involved dry shampoo products sold under Dove, Nexxus, Suave, TIGI product lines including Bed Head and Rockaholic, and TRESemmé. The recall applied to select lot codes of aerosol dry shampoo products produced before October 2021, not every Unilever hair-care product.
Did the court find Unilever liable for benzene in dry shampoo products?
No. The public record does not show a final liability finding against Unilever in the dry shampoo class action. The proposed settlement was a negotiated resolution, and the court later denied preliminary approval without prejudice because of concerns about standing, class period, and product scope.
How did benzene testing affect the Unilever dry shampoo class action?
Product testing formed part of the case record because the benzene allegations depended on whether testing could connect alleged contamination to specific dry shampoo products, brands, lot codes, and time periods. Later settlement review focused partly on whether the proposed covered products and class period matched the contamination evidence presented to the court.
Why did the court deny preliminary approval of the Unilever dry shampoo settlement?
The court found problems with the proposed settlement class definition. In particular, the court questioned whether the class period reached too far back compared with the evidence of alleged contamination and whether the covered-product definition included products not shown by third-party testing to be contaminated.
Benzene
Cosmetics
Aerosol Can
Contamination
Personal Care Products
Product Recalls
Product Testing
Laboratory Testing
Consumer Protection
Manufacturing
Metallurgy, +4
Manufacturing
Manufacturing, +4
Manufacturing