You’re using your vitamin C serum wrong. I was too.
It’s not an antioxidant booster—it’s a shield. Applying it at night is like putting on sunscreen before bed. Total waste.
This is the C E Ferulic from SkinCeuticals. It’s $182. I tried it because derms swear its formula is the only one proven to penetrate.
15% L-ascorbic acid
The exact concentration research shows your skin can actually use.
1% Vitamin E
Doubles the antioxidant protection against free radicals.
0.5% Ferulic Acid
Makes the whole thing stable and boosts efficacy by 8x.
Photo: Christian Agbede / Unsplash
At night, you want repair, not defense. Retinols and peptides work while you sleep. Vitamin C degrades by evening—your bottle turns light brown.
- L-Ascorbic Acid (Vitamin C): Fights daytime free radicals from pollution/UV
- Vitamin E (Tocopherol): Stabilizes C, reinforces skin barrier
- Ferulic Acid: Boosts stability of C+E, neutralizes more radicals
- Amino Acids: Helps with penetration
Photo: Poko Skincare / Unsplash
Texture is thin, like hot dog water—but smells like it too. Metallic, weird. Absorbs in 20 seconds, leaves a faint tacky film.
By week 3, that tackiness was gone. My skin just… drank it. The surprise? It made my sunscreen pill if I didn’t wait a full minute.
Photo: Fleur Kaan / Unsplash
After 2 months, my existing sunspots faded maybe 15%. Not erased. The real win? My skin didn’t get that midday grimy, oxidized look. Fresher all day.
Use it in the AM or don’t bother. It’s a brilliant defense serum, not a repair treatment.