GLOW

Vitamin C Brightening Serum

15% L-ascorbic acid.

$26

The morning serum that does the work. Brightens, evens, protects from the kind of damage you can't see yet.

Free shipping over $50. 30-day returns, any reason.

L-ascorbic acid — the only form of vitamin C with real research behind it — at 15%, the highest tolerated concentration before diminishing returns kick in. Stabilized in an amber dropper bottle to fight the oxidation problem that plagues every other vitamin C serum on the shelf.

It brightens. It evens. It builds collagen over months. And it amplifies your sunscreen — making SPF 30 act more like SPF 45 in the studies.

Use it every morning, before sunscreen, before makeup. Watch for the bottle to turn from gold to dark amber — that means it's oxidized and needs replacing. Most users finish a bottle before that happens.

WHAT YOU GET

  • 15% L-ascorbic acid — clinical-strength, the highest effective dose
  • Stabilized with vitamin E + ferulic acid (the famous trio)
  • Amber glass bottle slows oxidation
  • Boosts SPF effectiveness by ~30% in studies
  • Lightweight, layers under sunscreen and makeup

SPECS

The details.

Active
15% L-ascorbic acid
Co-actives
Vitamin E (1%) + ferulic acid (0.5%)
pH
3.5
Size
30ml amber glass dropper
Scent
Faint citrus (natural to L-ascorbic)
Shelf life
6 months after opening

HOW TO USE

The ritual.

  1. 01 Use in the morning, after cleansing.
  2. 02 Apply 3–4 drops to your palm. Press into face — don't rub.
  3. 03 Wait 60 seconds for absorption.
  4. 04 Follow with moisturizer, then sunscreen.
  5. 05 Store in a cool, dark place. The bathroom cabinet is fine — sunlight is what kills it.

IN THE BOX

What arrives.

FAQ

Good questions.

How will I know when it's oxidized? +

The liquid will turn from light gold to deep amber to brown. Light gold to gold is fine. Past that, time to replace.

Can I use it with my peeling serum? +

Yes — vitamin C in the morning, peeling serum at night. Don't layer them in the same routine.

Will it sting? +

On day one, a slight tingle is normal — that's how L-ascorbic feels. If it stings consistently after a week, your skin's telling you to use less or use it every other day.

Is it stable in summer heat? +

Yes, if stored away from direct sunlight. Don't leave it on a sunny windowsill — but a bathroom counter is fine.

Do I still need sunscreen? +

Yes. Vitamin C boosts SPF; it doesn't replace it.

COMPLETE YOUR ROUTINE

Pairs well with.