Thiamine HCL

Thiamine HCl is the hydrochloride salt of vitamin B1, a water-soluble nutrient used in cosmetic formulas. It's included for its antioxidant role and its conditioning effect on product feel, with limited data on visible outcomes from topical use.
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Ingredient Snapshot

Overview
Vitamin B1 added for mild antioxidant and skin-conditioning benefits.
Category
Antioxidant, Skin Conditioning
Type
Antioxidant

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

May help neutralize free radicals and contribute to a softer, conditioned skin feel, though topical outcomes are modest and clinical support for dramatic results is limited.

Uses In Skincare & Cosmetics

Used in water-based toners, essences, and moisturizers as a supportive vitamin component within multi-antioxidant formulas.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Typically low irritation potential and compatible with water-based formulas. Sensitive skin may notice transient tingling; patch test if prone to reactivity. No widely recognized regulatory limitations for cosmetic use.

Is Thiamine HCL a Good Ingredient?

It rates Fair because, while included as a supportive antioxidant, solid clinical data for visible skin benefits from topical B1 is limited. A small subset of users may also experience mild stinging or sensitivity, particularly at higher use levels.

Products with Thiamine HCL

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