Vitamin C + Peptide 24 Brightening Serum
Serum
Updated 10 Dec 2025

Vitamin C + Peptide 24 Brightening Serum

Olay
14Ingredients
0EU Banned
1Caution
0.4/5Comedogenic
Pregnancy SafeNo flagged ingredients
0.4/5Comedogenic
Pregnancy SafeNo flagged ingredients
Allergen-freeNo fragrance allergens
57% Natural43% synthetic

Contains Regulated Ingredients

EU Restricted Ingredients

These ingredients are permitted in the EU but subject to concentration limits, usage conditions, or mandatory labelling requirements under Annex III of the EU Cosmetics Regulation.

Sodium BenzoateMax a) 2.5% (acid) | b) 1.7% (acid) | c) 0.5% (acid)
Max concentration:a) 2.5% (acid) | b) 1.7% (acid) | c) 0.5% (acid)
Product types:a) Rinse-off products, except oral care products | b) Oral care products | c) Leave-on products
What does "EU Restricted" mean?

Restricted ingredients are not banned — they are allowed in cosmetic products as long as specific conditions are met:

  • Concentration limits — maximum allowed percentage in the final product
  • Product type restrictions — some ingredients are only allowed in rinse-off or leave-on products
  • pH restrictions — the finished product must stay within a specific pH range
  • Mandatory labelling — certain allergens must be listed on the packaging
  • Usage conditions — must not be combined with certain other ingredients

These limits are based on the EU CosIng database (Annex III) and are updated regularly. Products sold in the EU must comply with all applicable restrictions.

Ingredient Chemistry

pH

pH Efficacy

pH Efficacy

pH 5.3 — Optimal
5.3
0Neutral 714
pH estimated from category & ingredients: 5.3
Active ingredients: Copper Tripeptide-1
Copper Tripeptide-1 at pH 5.3: optimal range (5–7)
Detected actives & ideal pH
Copper Tripeptide-1pH 5–7

Microbiome

Composition & Ethics

Product Details

Attributes

Ethics
VeganLikely
No animal-derived ingredients detected
Cruelty-FreeUnknown
No brand statement — contact manufacturer
Safety
Fragrance-FreeContains fragrance
Contains fragrance/parfum
Key Actives
Contains Vitamin CConfirmed
Contains vitamin C derivative
Vitamin C SerumConfirmed
Niacinamide SerumConfirmed
Exfoliating SerumConfirmed
Peptide SerumConfirmed
Confirmed Inferred Unknown Not compliant

Composition

57% natural43% synthetic
8 natural 6 synthetic

Based on 14 ingredients analyzed. 57% natural and 43% synthetic.

Active ingredients5 actives
Preservatives1 preservative
FragranceContains added fragrance
Silicones2 silicones

Functions Overview (15)

skin conditioning4:Niacinamide*, 3-O-Ethyl Ascorbic Acid*, Palmitoyl Pentapeptide-4^, PEG-11 Methyl Ether Dimethicone
humectant3:Glycerin, Trehalose, Sodium Lactate
fragrance2:Sodium Benzoate, Fragrance

Texture & Feel

Texture & Feel

Expected texture
Viscous, serum-like — slightly "thick water" feel
SpreadabilityVery easy
AbsorptionFast
Tackiness / ResidueNone
Finish:Luminous / radiant — subtle light-reflecting glow

Silicones create a smooth, velvety "slip" with a blurring sensory effect. Slight initial tackiness that fades into a hydrated dewy finish.