Squalane + Vitamin C Rose Firming Oil — Reddit Reviews
by Biossance
Updated November 10, 2026
Squalane and vitamin C oil for plump, hydrated skin; layers beautifully without grease.
What the community says
A lightweight facial oil pairing squalane with tetrahexyldecyl ascorbate, the oil-soluble vitamin C listed second. It suits dehydrated or combination skin wanting a plumper finish, though the rose extract and fragrance allergens make it a questionable pick for reactive faces.
What this means for you
What people love
- Oil-soluble THD vitamin C listed second
- Plumps fine lines and boosts a dewy finish
- Absorbs beautifully without grease on combination skin
Product details
Skin Type
Product Traits
Based on limited Reddit discussion so far
Where to buy
What the science says
Vitamin C has some evidence for fading dark patches, especially melasma, and most studies found it helped 1. Studies on signs of aging, which have some evidence behind them, found vitamin C smoothed wrinkles, roughness, and uneven tone in sun-damaged skin better than a placebo 2. It did not clearly beat a placebo for how much water the skin held 2.
- Vitamin C for hyperpigmentation Some evidence · 19 studies
- Vitamin C for anti-aging Some evidence · 12 studies
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
How we grade researchFull ingredient list · 7
Biossance Squalane + Vitamin C Rose Firming Oil ingredients
Squalane, Tetrahexyldecyl Ascorbate, Caprylic/Capric Triglyceride, Pistacia Lentiscus (Mastic) Gum, Rosa Damascena Flower Extract, Geraniol, Citronellol
Listed in label order, highest concentration first. Linked ingredients have their own page.
Real Reddit threads — 11 mentions across 8 threads
Biossance Squalane + Vitamin C Rose Firming Oil on Reddit, in one place — 8 threads from r/30PlusSkinCare, r/Rosacea and 2 more, summarized.
“Biossance - $74 / 1 oz - "Squalane + Vitamin C Rose Oil”
Mentioned
“*THDA percentage not disclosed, but 2nd on ingredients list after Squalane”
Mentioned
“Percentage not disclosed”
Mentioned
“I then decided to try pure 100% Squalane from Biossance”
Positive
“and saw my skin change OVERNIGHT”
Positive
“For the first in 10 years ... I don’t have a single pimple or white head on my forehead and no sign of rosacea on my cheeks.”
Positive
“Purito oat in gel cream mixed with biossance squalane,”
Positive
“Purito oat in gel mixed with biossance squalane,”
Positive
“Sure - so my whole routine is :”
Positive
“Biossance Rose Vit C oil.”
Mentioned
“Also their Squalane + Vitamin C Rose Oil in the morning”
Positive
“I have combo skin and both the above absorb beautifully, and make my skin look and feel hydrated without getting greasy.”
Positive
“Pretty much everything I’ve tried from Biossance agrees with my skin very well.”
Positive
“Biossance squalene vitamin c rose oil is great.”
Positive
“There are mini sets for $25 that include this.”
Positive
“It lasts a long time.”
Positive
