Stimulate The Serum
Serum
Updated 10 Dec 2025

Stimulate The Serum

Colbert MD
42Ingredients
0EU Banned
3Caution
0.4/5Comedogenic
Pregnancy Risk1 ingredient flagged
0.4/5Comedogenic
Pregnancy Risk1 ingredient flagged
Low Allergens1 fragrance allergen
52% 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.

limonene
Restricted — see EU CosIng Annex III
linalool.
Restricted — see EU CosIng Annex III
sodium hydroxide
Restricted — see EU CosIng Annex III
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 5.0 — Suboptimal
5.0
0Neutral 714
pH estimated from category & ingredients: 5.0
Active ingredients: Glycolic Acid, Ascorbyl Glucoside, L-Ascorbic Acid
Glycolic Acid at pH 5: likely ineffective — above 4.5
Ascorbyl Glucoside at pH 5: optimal range (5–7)
L-Ascorbic Acid at pH 5: likely ineffective — above 4
Glycolic Acid is at pH 5, which is too high for optimal efficacy (3–4).
L-Ascorbic Acid is at pH 5, which is too high for optimal efficacy (2.5–3.5).
Detected actives & ideal pH
Glycolic AcidpH 3–4
Ascorbyl GlucosidepH 5–7
L-Ascorbic AcidpH 2.5–3.5

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
Exfoliating SerumConfirmed
Confirmed Inferred Unknown Not compliant

Composition

52% natural43% synthetic
22 natural 2 unknown 18 synthetic

Based on 42 ingredients analyzed. 52% natural, 5% unknown and 43% synthetic.

Active ingredients2 actives
Preservatives2 preservatives
FragranceContains added fragrance
Silicones1 silicone

Functions Overview (15)

skin conditioning13:peg-12 glyceryl dimyristate, acetyl glucosamine, carnitine hci, creatine, isohexadecane, caprylyl glycol, hexylene glycol, cholesterol... +5 more
type of chemical entity5:sodium hydroxide, ascorbyl palmitate, ascorbic acid, citric acid, potassium sorbate
surfactant - cleansing4:steareth-21, polysorbate 80, hexylene glycol, decyl glucoside

Texture & Feel

Texture & Feel

Expected texture
Viscous, serum-like — slightly "thick water" feel
SpreadabilityVery easy
AbsorptionVery fast
Tackiness / ResidueVery low
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.