Citrix Vitamin C Pro-Collagen Brightening Serum
Serum
Updated 10 Dec 2025

Citrix Vitamin C Pro-Collagen Brightening Serum

Topix
20Ingredients
0EU Banned
4Caution
0.2/5Comedogenic
Pregnancy Risk1 ingredient flagged
0.2/5Comedogenic
Pregnancy Risk1 ingredient flagged
Mod. Allergens3 fragrance allergens
75% Natural25% 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.

ArbutinMax 7.0%
Max concentration:7.0%
Product types:Face cream
Conditions:Hydroquinone levels shall remain as low as possible in formulations containing alpha-Arbutin and shall not be higher than the unavoidable trace level.From 1 February 2025 cosmetic products containing that substance and not complying with the conditions shall not be placed on the Union market. From 1 November 2025 cosmetic products containing that substance and not complying with the conditions shall not be made available on the Union market.
D-Limonene
Product types:All cosmetic products
Conditions:The presence of the substance shall be indicated in the list of ingredients referred to in Article 19(1), point (g), when its concentration exceeds: — 0,001 % in leave-on products — 0,01 % in rinse-off products. The peroxide value for each substance shall be less than 20 mmoles/L (This limit applies to the substance and not to the finished cosmetic product).
Retinyl PalmitateMax 5.0%
Max concentration:5.0%
Product types:(a) Body lotion(b) other leave-on and rinse-off products
Conditions:From 1 November 2025 cosmetic products containing that substance and not complying with the conditions shall not be placed on the Union market. From 1 May 2027 cosmetic products containing that substance and not complying with the conditions shall not be made available on the Union market.
Label warnings: For any cosmetic product containing Retinol, Retinyl Acetate or Retinyl Palmitate the following, labelling is obligatory: ‘Contains Vitamin A. Consider your daily intake before use’.
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 4.0 — Suboptimal
4.0
0Neutral 714
pH estimated from category & ingredients: 4.0
Active ingredients: Ascorbyl Glucoside, L-Ascorbic Acid, Alpha-Arbutin, Retinol
Ascorbyl Glucoside at pH 4: very acidic — may increase irritation risk
L-Ascorbic Acid at pH 4: acceptable but not ideal (2.5–3.5 is best)
Alpha-Arbutin at pH 4: optimal range (4–6.5)
Retinol at pH 4: very acidic — may increase irritation risk
Ascorbyl Glucoside at pH 4 is below the ideal range (5–7).
Retinol at pH 4 is below the ideal range (5–6).
Detected actives & ideal pH
Ascorbyl GlucosidepH 5–7
L-Ascorbic AcidpH 2.5–3.5
Alpha-ArbutinpH 4–6.5
RetinolpH 5–6

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 RetinolConfirmed
Contains vitamin A derivative
Contains Vitamin CConfirmed
Contains vitamin C derivative
Vitamin C SerumConfirmed
Retinol / Vitamin AConfirmed
Brightening SerumConfirmed
Confirmed Inferred Unknown Not compliant

Composition

75% natural25% synthetic
15 natural 5 synthetic

Based on 20 ingredients analyzed. 75% natural and 25% synthetic.

Active ingredients3 actives
Preservatives1 preservative
Fragrance2 essential oils
Silicones2 silicones

Functions Overview (15)

Texture & Feel

Texture & Feel

Expected texture
Lightweight, watery liquid that spreads easily
SpreadabilityVery easy
AbsorptionVery fast
Tackiness / ResidueNone
Finish:Soft matte — natural-looking, shine-controlled

Silicones create a smooth, velvety "slip" with a blurring sensory effect.