Squalane + Vitamin C Rose Firming Oil — Reddit Reviews
by Biossance
Updated October 14, 2026
Squalane plus oil-soluble vitamin C for dewy moisture and brighter-looking skin.
What the community says
An oil-serum pairing squalane with tetrahexyldecyl ascorbate for cushioned moisture and a brightening step. It suits dry-weather slugging and combination skin, but the vitamin C percentage is undisclosed and rose-derived fragrance components may irritate reactive faces.
What this means for you
What people love
Product details
Skin Type
Product Traits
Skin type data limited
Where to buy
What the science says
Hyperpigmentation
Some evidence
Vitamin C: 9 studies tested it on its own. See all 20 studies
Anti-Aging
Some evidence
Vitamin C: 6 studies tested it on its own. See all 17 studies
What the studies found
- All 6 studies that tested vitamin C on its own found it helped with signs of aging
- Studies found it improved wrinkles, including crow’s-feet and lines around the eyes
- It also made sun-damaged skin look smoother and improved overall skin appearance
- It did not seem to improve how much water the skin held more than a placebo
- No side effects were reported in one clinical trial
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 9 mentions across 7 threads
Biossance Squalane + Vitamin C Rose Firming Oil on Reddit, in one place — 7 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
“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
“Biossance Squalene if the weather is dry”
Positive
“Biossance Squalene if the weather is dry or for gua sha”
Positive
“omg when I use it my skin is so plump and happy, the aforementioned fine lines basically disappear”
Positive
