30 ml
Where it fits
Step 03 · Treat in the SESE ritual.
01
Cleanse
02
Tone
03 · This
Treat
04
Moisturise
05
Protect
HOW TO USE
One to two drops. Every morning.
01
After cleansing and toner
Apply to clean, toned skin. Vitamin C absorbs best on a pH-balanced base.
02
Warm one to two drops in your palms
Press firmly across cheeks, forehead, chin and neck. Pat. Don't rub.
03
Wait sixty seconds
Let the serum absorb fully before layering moisturiser on top.
04
SPF is non-negotiable
Vitamin C makes skin temporarily more photosensitive. Always finish morning routine with SPF 50.
Honest answers
Questions about Vitamin C.
Can I use it with Peptide Serum?+
Yes. They complement each other well. Use Vitamin C in the morning and Peptide Serum in the morning or evening. Avoid layering both in a single step: apply one, wait, then apply the other.
My serum turned orange. Is it still safe?+
An orange tint means the Vitamin C is oxidising. The formula is less effective at that point. Store below 20°C and away from direct light to extend freshness. Most bottles last 3 months from opening.
Can I use it if I have rosacea or reactive skin?+
Vitamin C at 12% can cause tingling in sensitive skin. Start every other day for two weeks, then daily. If irritation persists, the Peptide Serum is a gentler morning active to start with.
Why only mornings?+
Vitamin C is an antioxidant. It works against the environmental damage of the day. It also makes skin temporarily more photosensitive, so pairing it with SPF in the morning makes most sense.
COSMOS Natural
Certified
Vegan
No animal derivatives
Cruelty-free
Leaping Bunny
Gluten-free
Tested formula
Made in EU
Coastal botanicals
Honest results
"My skin looks like I sleep well now. I don't, but it does."
Radiance that builds, not borrows.
Vitamin C brightens by interrupting melanin production — the effect is cumulative. Day one you feel it. Week four you see it. Month two it holds.
The formula uses a ferulic acid stabilisation system that keeps the ascorbic acid active from first drop to last.
+31%
Radiance uplift after 4 weeks
87%
More even skin tone at 8 weeks
12%
Stable ascorbic acid
Full ingredient list (INCI)+
Key ingredients
VC12%
Ascorbic Acid
Pure vitamin C — brightens and stimulates collagen.
FER0.5%
Ferulic Acid
Stabilises vitamin C and doubles its antioxidant effect.
VE1%
Tocopherol (Vitamin E)
Antioxidant synergy — keeps the formula stable.
NIA3%
Niacinamide
Brightens pores, smooths texture, calms redness.
HA1%
Sodium Hyaluronate
Hydration that carries the actives deeper.
89.3% naturally derived. 100% vegan. No fragrance, parabens, or sulfates.
Make it a ritual
