Thiamine (B1)

Product Description

Our high-purity Thiamine HCl is manufactured under ISO-aligned cosmetic-grade controls with batch COA traceability and direct factory supply for bulk B2B orders.

Thiamine (vitamin B1) acts as a water-soluble cofactor in carbohydrate metabolism and supports antioxidant defense in keratinocytes, helping formulators address dull, environmentally stressed skin in aqueous leave-on systems.

Unlike oil-soluble tocopherol esters, this INCI-listed THIAMINE HCl integrates cleanly into water-phase serums, toners, and scalp lotions where CosIng-recognized B-vitamin conditioning is requested.

Product Specification

• INCI Name: THIAMINE HCl
• CAS No.: 67-03-8
• Appearance: White to off-white crystalline powder (Typical)
• Solubility: Freely soluble in water; sparingly soluble in alcohol (Typical)
• Suggested pH: 3.0–6.5 for stable aqueous systems (Typical)
• Assay Method: HPLC or UV spectrophotometry (Typical)
• Shelf Life: 24 months sealed, stored below 25°C (Typical)
• Standard Packaging: 1 kg / 25 kg foil-lined drums
• Storage: Cool, dry place; protect from light and moisture
• Regulatory Status: Listed in CosIng as THIAMINE HCl; INCI recognized
• Quality & Testing: Typical COA includes assay, heavy metals, and microbial limits
• Compliance Note: For cosmetic use only; not for injectable or oral supplement claims

Key Benefits & Applications

Thiamine HCl delivers water-phase B1 activity for formulators building antioxidant, energy-support, and barrier-comfort leave-on skincare.

• Neutralizes reactive oxygen species via thiamine-linked redox support in aqueous antioxidant serums and daily essences.
• Supplies vitamin B1 cofactor activity supporting ATP-relevant energy metabolism in fatigued-skin revitalizing formulas.
• Promotes mild keratinocyte turnover signaling for smoother texture in facial toners at 0.05–0.3% w/w.
• Reinforces stratum corneum comfort when paired with ceramides in barrier-repair creams at low B-vitamin loads.
• Calms visibly reactive skin in humectant-rich toner matrices without heavy occlusive carriers.

Formulation Guidelines

Water-soluble thiamine suits aqueous leave-on systems within typical B-vitamin dosing windows for serums, essences, and scalp tonics.

• Add 0.01–0.5% w/w in the water phase of serums, essences, or scalp tonics.
• Dissolve fully before emulsification; incorporate below 40°C to limit degradation.
• Maintain formula pH 3.5–6.5; avoid pairing with strong oxidizers or high-alkaline systems.
• Stable in typical aqueous matrices; verify compatibility with metal ions and ascorbic acid blends.
• Synergy: Pair Panthenol at 0.5–2% with thiamine to reinforce B-vitamin barrier conditioning in sensitive-skin toners.