COSRX
The 6 Peptide Skin Booster Serum
about $17.50
Threonine
Threonine leaves hair feeling smoother and easier to manage, and also is listed in CosIng as an antistatic agent (static control, mostly in hair products), and chemically reshapes hair's curl pattern.
Recent research
Tracking 4 published papers (2026).
- Mechanistic insights into triclocarban-induced skin barrier disruption via integrating imaging localization, multi-omics, and network toxicology.
Environmental pollution (Barking, Essex : 1987), 2026, cited 0× (OpenAlex)
- Oral myo-inositol plus D-chiro-inositol (3.6:1) reduces insulin resistance pathway biomarkers in acne-involved skin among subjects with metabolic comorbidities: A gene expression study.
Neuro endocrinology letters, 2026, cited 0× (OpenAlex)
- Distinct polyp recurrence timing and STK11 mutation status underlie clinical heterogeneity in pediatric Peutz-Jeghers syndrome.
Journal of pediatric gastroenterology and nutrition, 2026, cited 0× (OpenAlex)
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
Pro-vitamin B5Moisturizes and improves hydration by drawing and holding water in the skinHydrolyzed Wheat ProteinConditions and adds body, so hair feels thickerHydrolyzed KeratinConditions hair and smooths a damaged, rough cuticleCeramide NpHelps replenish surface lipids within an appropriately formulated moisturizerHyaluronic 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.SqualaneSoftens and smooths skin
Where it's used
Real brands and product categories from the 268 decoded products listing Threonine — an observation of our catalog, not a claim about market share.
Brands
Product categories
serums (47), masks (41), moisturizers (40), shampoos (33), cleansers (19), exfoliants (19)
Commonly appears alongside
How often another ingredient appears in the same decoded products. This does not show routine compatibility.
Climbazole3%7 of 268 decoded productsHydrolyzed Keratin7%19 of 268 decoded productsUrea7%18 of 268 decoded productsCaffeine13%34 of 268 decoded productsHydrolyzed Wheat Protein8%21 of 268 decoded productsArgan oil7%20 of 268 decoded productsCeramide Np31%83 of 268 decoded productsBHA exfoliant11%30 of 268 decoded productsSodium Ascorbyl Phosphate6%15 of 268 decoded products
Products with Threonine
All 259 →259 public products list this ingredient.
Catalog preview
A compact look at the first products in this result set
1–1 / 12
COSRX
The Ceramide Skin Barrier Moisturizing Mist
about $16.80
COSRX
COSRX Skin Barrier Moisturizing Body Cream
about $17.50
COSRX
COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo
about $25.90
COSRX
The Hyaluronic Acid 3 Serum
about $17.50
Versed Skin
Good Defense
about $19.99
Beauty of Joseon
Red Bean Water Gel
about $18.00
Facetheory
Replenamist Hydrating Toner
about $18.00COSRX
COSRX The 6 Peptide Skin Booster Serum 150ml
about $17.50COSRX
COSRX The Ceramide Skin Barrier Moisturizing Mist 120ml
about $16.63COSRX
COSRX Skin Barrier Moisturizing Body Cream 450ml
about $17.33
COSRX
COSRX Peptide-132 Ultra Perfect Hair Bonding Treatment 240ml
about $16.90
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 38594) · 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.