Cosmetic Grade Betaine Monohydrate

Product name	Betaine Monohydrate
Alias	Trimethylglycine monohydrate, Betaine monohydrate, Betaine Hydrate; BET H2O; Betaine 1-Hydrate; (Carboxymethyl) trimethylammonium hydroxide; betaine free base monohydrate; N,N,N-Trimethylglycine Hydroxide
Chemical reaction	C5H11NO2·H2O
Constitutional formula
CAS NO.	17146-86-0
Formula weight	135.16
Content	98%
Surface	White crystal or a crystalline powder
Water-solubility	>100g/100ml
Product features	High purity and strong fluid dispersion

 

Index of correlation

Metric	Content	Ignition residue	Heavy metal	Arsenic	Chlorid	Triamide residue
Standard	≧98.0%	≤1.5%	≤0.001%	≤0.0002%	≤0.2%	≤100ppm

Note: The content of betaine in one water is measured as dry base, heavy metals as Pb, and arsenic as As.

 

Appearance Display

Cosmetic Grade Betaine Monohydrate (CAS: 590-47-6) is a natural, highly pure zwitterionic humectant derived from sugar beets, designed to deliver deep, non-sticky hydration while strengthening the skin barrier. Unlike traditional moisturizers, this osmolyte actively regulates cellular water balance to protect against dehydration and external stress. With a typical purity of ≥98% and a pH range of 5.0–7.0 (1% solution), it provides instant, lasting moisture, reduces irritation caused by sulfates, and improves the sensory feel of creams, cleansers, and serums. It is fully water-soluble and compatible with most cosmetic formulations, making it an ideal clean-beauty alternative to hyaluronic acid or glycerin.

 

Product Application

 

Cosmetic Grade Betaine Monohydrate is widely used across personal care categories due to its exceptional moisture-regulating and irritation-reducing properties. In facial cleansers and body washes, it effectively mitigates the harshness of anionic surfactants like SLS and SLES, significantly lowering the skin's transepidermal water loss (TEWL) while improving foam density and post-wash softness. In leave-on products such as serums, moisturizers, and sunscreens, it functions as a natural osmoregulator, delivering deep, non-sticky hydration without disrupting the skin barrier. It is also a common ingredient in oral care products like toothpaste and mouthwash, where it reduces dryness and enhances mouthfeel. Additionally, in hair care formulations including shampoos and conditioners, betaine helps maintain scalp moisture balance, reduces frizz, and improves combability. Its high water solubility, thermal stability, and compatibility with preservatives and active ingredients make it an ideal choice for clean-label, sensitive-skin, and baby care products.