Biossance Squalane + Vitamin C Rose Oil — Efficacy 3.0/5.0, Safety 4.2/5.0 | DemythSkin
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[ DemythSkin Verdict ]
Biossance Squalane + Vitamin C Rose Oil
Biossance

Biossance Squalane + Vitamin C Rose Oil

Face OilBrightening
Efficacy
Basic
3.0 / 5.0
Safety
Mostly Safe
4.2 / 5.0
System Verdict
Pretty, simple, and modestly effective — but this is not a serious vitamin C treatment. The formula’s efficacy is driven mainly by squalane and a stable oil-soluble vitamin C derivative, but the derivative sits in a short oil base with no supporting brightening system, so the overall brightening/anti-aging payoff is limited rather than transformative.
Active Ingredients Detected
A Tier: Good BasicsProven Results
SqualaneTetrahexyldecyl Ascorbate
B Tier: Supporting IngredientsPromising Ingredients
Pistacia Lentiscus (Mastic) Gum
C Tier: Marketing IdolsHype | Limited or Weak Data
Rosa Damascena Flower Extract
D Tier: Potential IrritantsBe Cautious
GeraniolCitronellol
What Each Ingredient Does
Squalane
emollient, skin-replenishing oil
Tetrahexyldecyl Ascorbate
oil-soluble vitamin C derivative
Caprylic/Capric Triglyceride
lightweight emollient, solvent
Pistacia Lentiscus (Mastic) Gum
botanical film former
Rosa Damascena Flower Extract
fragrant botanical extract
Geraniol
fragrance allergen
Citronellol
fragrance allergen
Full Ingredient List (INCI)

Squalane, Tetrahexyldecyl Ascorbate, Caprylic/Capric Triglyceride, Pistacia Lentiscus (Mastic) Gum, Rosa Damascena Flower Extract, Geraniol, Citronellol

Frequently Asked

Is Biossance Squalane + Vitamin C Rose Oil worth it?

Biossance Squalane + Vitamin C Rose Oil scores 3.0 out of 5.0 for efficacy (Basic) and 4.2 out of 5.0 for safety (Mostly Safe) on DemythSkin's independent ingredient analysis. Pretty, simple, and modestly effective — but this is not a serious vitamin C treatment. The formula’s efficacy is driven mainly by squalane and a stable oil-soluble vitamin C derivative, but the derivative sits in a shor

What are the key active ingredients in Biossance Squalane + Vitamin C Rose Oil?

Biossance Squalane + Vitamin C Rose Oil contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.

Does Biossance Squalane + Vitamin C Rose Oil contain fragrance or known irritants?

DemythSkin flags these ingredients in Biossance Squalane + Vitamin C Rose Oil as potential irritants: Geraniol, Citronellol.

How is Biossance Squalane + Vitamin C Rose Oil scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-08-23. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.