Squalane + Vitamin C Rose Firming Oil — Reddit Reviews
by Biossance
Updated October 3, 2026
THD vitamin C and squalane for hydrated, plumper-looking skin; rose-scented.
What the community says
An oil with squalane and THD vitamin C that layers well in the morning or for slugging. People with combo, dry, or rosacea-prone skin liked the hydrated, plump finish. The rose extract and fragrance allergens can be a dealbreaker.
What this means for you
What people love
Watch out for
- Rose extract plus geraniol and citronellol add fragrance baggage
- Not a fix for dehydration on its own
- Old bottles are getting side-eyed for face use
Product details
Skin type data limited
Where to buy
What the science says
Hyperpigmentation
Some evidence
Vitamin C: 7 studies tested it on its own. See all 24 studies
What the studies found
- Most studies found vitamin C helped fade dark spots or patches
- In melasma studies, vitamin C on the skin often made patches look lighter over time
- Used with other treatments, vitamin C sometimes faded melasma more than the other treatment alone
- For sun spots, vitamin C showed some fading, but one study had mixed results
- It worked about as well as glycolic acid for fading melasma patches in one large review
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 7 mentions across 5 threads
Biossance Squalane + Vitamin C Rose Firming Oil on Reddit, in one place — 5 threads from r/Rosacea, r/tretinoin and 1 more, summarized.
“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 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
“I think Sunday Riley C.E.O. 15% Vitamin C Brightening Serum and Biossance Squalane + Vitamin C Rose Oil are going to be the closest things”
Mentioned
“The other THD Vitamin C serums don't have squalane.”
Mentioned
“Biossance Squalane + Vitamin C Rose Oil are going to be the closest things”
Mentioned
