The Inkey List
Supersize Omega Water Cream Duo
about $31.35
Betaine
Betaine draws moisture into the skin, and also leaves skin feeling smoother or better cared for, and leaves hair feeling smoother and easier to manage.
Recent research
Tracking 3 published papers (2025-2026).
- Patterns of Sensitization and Cross-Reactivity in Hair Dye Allergy: An 18-Year Tertiary-Center Experience from Greece.
Dermatitis : contact, atopic, occupational, drug, 2026
- Oryza Ceramax in Dermatologic Care: A Multi-pathway Approach to Skin Hydration and Barrier Repair.
Cureus, 2026
- Rice varietal intercropping mediates resistance to rice blast (Magnaporthe Oryzae) through core root exudates.
BMC plant biology, 2025
Where it fits in real formulas
Related ingredients, common formula neighbors, naming, and catalog context. This stays separate from evidence and personal-fit guidance.
Similar ingredients
related by documented function or concern
Hydrolyzed KeratinConditions hair and smooths a damaged, rough cuticlePro-vitamin B5Moisturizes and improves hydration by drawing and holding water in the skinHyaluronic AcidBinds water at the skin surface and supports short-term hydration. The widely repeated claim that it holds 1,000 times its weight in water is not supported by direct measurement. A 2025 review reported about 0.7–2 grams of water per gram of polysaccharide.Hydrolyzed Wheat ProteinConditions and adds body, so hair feels thickerUreaHelps dry, tight skin hold more waterHyaluronic Acid (salt form)Pulls water into the skin for immediate hydration and a plumper look
Where it's used
Real brands and product categories from the 1,034 decoded products listing Betaine — an observation of our catalog, not a claim about market share.
Brands
Product categories
serums (222), masks (207), moisturizers (192), toners (153), exfoliants (70), cleansers (43)
Based on those categories, Betaine shows up mostly in leave-on products (631 of 761 classified) — derived from product category, not a label fact.
Commonly appears alongside
How often another ingredient appears in the same decoded products. This does not show routine compatibility.
Snail mucin3%36 of 1,034 decoded productsBakuchiol3%28 of 1,034 decoded productsAlpha-Arbutin3%26 of 1,034 decoded productsAllantoin42%438 of 1,034 decoded productsCica29%299 of 1,034 decoded productsTranexamic Acid4%40 of 1,034 decoded productsCeramide Np30%313 of 1,034 decoded productsHyaluronic Acid (salt form)62%644 of 1,034 decoded productsHyaluronic Acid26%267 of 1,034 decoded products
Products with Betaine
All 994 →994 public products list this ingredient.
Catalog preview
A compact look at the first products in this result set
1–1 / 12
The Inkey List
Supersize Omega Water Cream - 100ml
about $16.50
Inkey Uk
Biome Balancing Moisturiser
about $12.00
Inkey Uk
Mini Milk Cleanser - 50ml
about $6.50
Inkey List
Omega Water Cream - 50ml
about $11.00
Inkey List
Caffeine stimulating scalp treatment
about $15.00
Inkey List
Salicylic Acid Exfoliating Scalp Treatment
about $15.00
Inkey List
Glycolic Acid Exfoliating Scalp Scrub
about $14.00
Inkey List
Peptide Moisturiser
about $16.00
Inkey List
Beta Hydroxy Acid (BHA) Serum
about $10.00
Inkey List
Salicylic Acid Cleanser - 150ml
about $12.00
COSRX
COSRX The Blue Peptide Bakuchiol Plump Bounce Cream
about $19.60
About the sources
Ingredient lists show presence and order, not concentration, pH, ingredient grade, delivery system, or finished-formula performance.
Sources & methodologyCompiled from the EU CosIng database (ref 74520) · snapshot 16 June 2026. CosIng is an informational, non-legally-binding reference. Inclusion does not mean an ingredient is approved, safe, authorized for cosmetic use, or clinically effective. An INCI list does not reveal concentration, pH, ingredient grade, delivery system, or finished-formula performance.