Hyaluronic Acid Serum
Why this score
Concern55 / 55
- No ingredients carry meaningful, evidence-backed concern.
How much genuine, cited concern the ingredients carry, weighted by how much of each is likely present and whether the product stays on or rinses off.
Transparency20 / 20
- No hidden fragrance blend.
Whether the full ingredient list, and any fragrance, are actually disclosed.
Formulation restraint25 / 25
- No needless irritants or fragrance allergens for this product type.
Needless irritant or allergen load for the product type. A clean, purposeful formula scores well without any "free-from" theater.
Scored by PlainBody Editorial against the PlainScore method · Label checked July 2026
What’s inside
WaterGenerally safe
The base most products are built on. It carries the other ingredients and has no safety concern.
Full ingredient details →PropanediolGenerally safe
A corn-derived solvent and humectant that has largely replaced propylene glycol in "clean" formulas; CIR reviewed the alkane diol group and found use concentrations up to about 40 percent in leave-on products like deodorant sticks with no meaningful irritation signal.
Full ingredient details →Hyaluronic AcidGenerally safe
A humectant that holds water at the skin surface for a more hydrated look. No safety concern.
Full ingredient details →GlycerinGenerally safe
A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.
Full ingredient details →Butylene GlycolCommonly feared, low concern
A lightweight humectant and solvent similar in role to propylene glycol, used to carry actives and give lotions a lighter feel. CIR has reviewed it and considers it safe as used in cosmetics.
Full ingredient details →PhenoxyethanolCommonly feared, low concern
A widely used preservative, safe at the legal limit of 1% or less. Often the "paraben-free" replacement.
Full ingredient details →Ammonium Acryloyldimethyltaurate/VP CopolymerGenerally safe
A synthetic polymer used to thicken and stabilize water-based formulas like gels and serums. It provides texture and suspension of particles without interfering with skin feel. Well established in cosmetics.
Full ingredient details →CarbomerGenerally safe
Carbomer is a synthetic polymer used purely to thicken and stabilize gels and lotions, with negligible skin penetration due to its large molecular size. Safety reviews have found low toxicity and minimal irritation potential even in leave-on use.
Full ingredient details →Polysorbate 20Generally safe
A widely used emulsifier and solubilizer that has been in cosmetics and pharmaceuticals for decades. The CIR has assessed it as safe with no known concerns at typical cosmetic concentrations. As with any surfactant, some people with very sensitive skin may experience mild irritation.
Full ingredient details →Cosmetic information for general education, not medical advice. Concern ratings are evidence-graded and cited on each ingredient page. See how we score.