US Proposed Class Action: Preservative Choice Makes Unilever’s TRESemme Keratin Products ‘Defective’
The presence of formaldehyde releaser DMDM hydantoin in TRESemme Keratin shampoos pose undisclosed risks of hair loss and/or scalp irritation, as shown by hundreds of consumer complaints online, plaintiffs allege in proposed class actions filed in Illinois and New Jersey federal courts.
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