Is this mouthwash suitable for people with sensitive oral tissues?

The rinse contains sodium lauryl sulfate and fragrance allergens (limonene, benzyl alcohol), which can irritate sensitive oral tissues; users with known sensitivities should perform a brief patch test or choose a sulfate‑free alternative.

What does zinc sulfate do in this mouthwash?

Zinc sulfate acts as an antimicrobial agent that helps reduce plaque formation and neutralize volatile sulfur compounds, contributing to fresher breath and supporting enamel health.

Are there any controversial ingredients in this formula?

The product includes phenoxyethanol, PEG‑40 hydrogenated castor oil and synthetic colorants CI 74160 and CI 77891, ingredients sometimes criticized for potential safety or environmental concerns, although they are approved for cosmetic use at the concentrations employed.

Unilever, Signal • 500 ml

Signal Bain de Bouche Gel Liquide Actif White Now Gold

Hygiene

Product Insights

Signal White Now Gold is a 500 ml liquid mouthwash from Unilever’s Signal brand, formulated as a gel‑type rinse that combines fluoride, zinc sulfate and a surfactant base. The formula delivers antibacterial and anti‑plaque benefits while providing a fresh sensation, but it also includes several synthetic additives such as phenoxyethanol, PEG‑40 hydrogenated castor oil, and colorants CI 74160 and CI 77891, which may be of concern for some users. Potential irritants include sodium lauryl sulfate, benzyl alcohol and the fragrance allergens limonene and benzyl alcohol, so individuals with sensitive oral mucosa should test before regular use.

Comparative Analysis

Compared with typical over‑the‑counter mouthwashes, this product stands out by pairing fluoride with zinc sulfate for added anti‑plaque action, while its gel texture and added brightening agents target a premium whitening niche.

Ingredients

Aqua, Hydrogenated Starch Hydrolysate, PEG-40 Hydrogenated Castor Oil, Glycine, Benzyl alcohol, Phenoxyethanol, Sodium Lauryl Sulfate, Aroma, Ethylhexylglycerin, Xanthan gum, Zinc Sulfate, Sodium Saccharin, Gellan gum, Sodium Fluoride, Sodium sulfate, Synthetic Fluorphlogopite, Lauryl Alcohol, Sodium chloride, Glycerin, Tocopherol, Tin Oxide, Limonene, CI 74160, CI 77891

84%

35%

Unlock Deep Cosmetic Safety Check

Scan this and millions of other cosmetics with the free NutrScan app to discover ingredient safety, potential concerns, and detailed product analysis before every purchase.