Round Lab
ROUND LAB Birch Juice Moisturizing Cream 80ml
$62.00
Polydecene
Polydecene is a cosmetic ingredient used in skincare formulas.
Summary
3 products tracked
What this means for you
Use this as orientation, not a prediction of individual tolerance.
May be useful for
The catalog does not link this ingredient to a skin type. Look at the whole product and how you will use it.
Who should be careful
The catalog does not say who should avoid this ingredient. It cannot judge a health need, pregnancy, or allergy.
An ingredient list confirms presence and order—not exact concentration, finished-formula performance, or personal comfort.
Evidence & sources
- official catalog snapshotEU CosIng Ingredients and Fragrance Inventory snapshot (2020-12-30; ref 78643)
- official database guidanceEuropean Commission: Cosmetic ingredient database and its evidence boundary
Provenance and review status are editorial metadata and are not published here — these are the records the profile is built from.
Decision snapshot
Current record- Evidence grade
- limited evidence
- In our catalog
- Found in 3 of the 7,058 products we've decoded
Names & references
Official label names and chemical registry identifiers, with each available source kept explicit.
- Official INCI name
- Polydecene
- Korean · KCIA
- 폴리데센
Chemical registries
What the record supports
Claims, limitations, sources, and tracked research are kept together so the evidence can be checked in context.
What it does
The catalog calls its main role “skin conditioning.” In plain language, it is used to improve how skin feels or looks. These labels do not prove that it treats a skin condition.
Evidence strength
limited evidence
Benefits
- Skin conditioning: Is used to improve how skin feels or looks.
- These are formula roles. They do not prove a skin treatment benefit.
Side effects
- The catalog does not list side effects for this ingredient.
- Being in CosIng does not mean an ingredient is safe. Each finished product needs a safety check.
- This broad catalog label does not prove a clinical skin benefit.
Where it fits in real formulas
Related ingredients, common formula neighbors, naming, and catalog context—kept separate from evidence and personal-fit guidance.
Similar ingredients
related by documented function or concern
Hyaluronic Acid (salt form)Pulls water into the skin for immediate hydration and a plumper lookPro-vitamin B5Moisturizes and improves hydration by drawing and holding water in the skinAllantoinHelps condition and soften the skin surfaceCeramide NpHelps replenish surface lipids within an appropriately formulated moisturizerCicaFunctions as a botanical skin-conditioning ingredientHyaluronic 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.
Where it's used
Real brands and product categories from the 3 decoded products listing Polydecene — an observation of our catalog, not a claim about market share.
Product categories
moisturizers (2), serums (1)
Based on those categories, Polydecene shows up mostly in leave-on products (3 of 3 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.
Frequently asked questions
What does Polydecene do in skincare?
Polydecene is a cosmetic ingredient used in skincare formulas. The catalog calls its main role “skin conditioning.” In plain language, it is used to improve how skin feels or looks. These labels do not prove that it treats a skin condition.
How common is Polydecene in skincare?
Polydecene appears in 0% of the 7,058 decoded products in our catalog (3 products).
Which brands use Polydecene?
In the products we've decoded, Polydecene appears in formulas from Tonymoly, Round Lab.
What kinds of products contain Polydecene?
In our decoded catalog, Polydecene shows up mostly in moisturizers (2), serums (1).
Is Polydecene typically rinse-off or leave-on?
Based on the categories of the decoded products that list it, Polydecene shows up mostly in leave-on products (3 of 3 classified) — derived from product category, not a label fact.
What is Polydecene called in Korean?
On Korean labels, Polydecene is listed as 폴리데센.
Products with Polydecene
All 3 →3 public products list this ingredient.
Catalog preview
A compact look at the first products in this result set
1–1 / 3
Compiled from the EU CosIng database (ref 78643) · snapshot 16 June 2026. The written profile above was human-reviewed; see its cited sources.