Vitamin C 40% Glow Serum: benefits and guarantee

Vitamin C 40% Glow Serum: why dark spots keep coming back

Vitamin C 40% Glow Serum: key ingredients

Vitamin C 40% Glow Serum: what to expect over 90 days

founding batch · made fresh to order

Vitamin C 40% Glow Serum

40% vitamin C + glutathione + niacinamide

Most vitamin C serums are unstable or sting.
Ours is stable, gentle and 40% strong.

Imagine catching your reflection and noticing your glow first, not your spots. This lightweight serum pairs 40% VCIP, a stable, skin-friendly vitamin C, with glutathione, niacinamide and tranexamic acid. It keeps working on the look of dark spots all day and layers under cream and sunscreen without pilling.

Fades the look of dark spots
40% stable, gentle vitamin C
Light, layers under sunscreen
60-day money-back guarantee

60-day guaranteemade in fresh batcheshalal certifiedno mercury or hydroquinone

complete your routine

Glow Shield Tone-Up Sunscreen

glutathione-boosting daily UV protection · $49.00

Kojic Acid Glow Bar

kojic acid + niacinamide + vitamin C · $39.00

PDRN Overnight Glow Cream

PDRN + 5% niacinamide overnight cream · $69.00

how to use

1. After the Kojic Acid Glow Bar, apply 2–3 drops to dry skin.
2. Press gently over face and neck, focusing on darker areas.
3. Morning: follow with Glow Shield Sunscreen. Night: follow with PDRN Overnight Glow Cream.

Read the full routine guide →

sensitive skin & irritation

• Patch test for 24 hours before first use.
• Weeks 1–2: use once a day, then build to twice a day.
• If you feel lasting stinging or redness, skip a day and use less.
• Wear sunscreen every day.
• Stop use and see a doctor if irritation continues.

Read the sensitive skin guide →

key ingredients

40% VCIP (VITAMIN C) — stable, oil-soluble vitamin C for a brighter-looking glow
NIACINAMIDE 4% — evens the look of skin tone
TRANEXAMIC ACID 3% — targets the look of stubborn dark spots
GLUTATHIONE — antioxidant
SQUALANE — lightweight moisture
Free from: fragrance, alcohol

shipping & guarantee

Founding batch pre-order: made fresh to order and ships in 2–4 weeks from our US warehouse, then usually arrives in 2–5 business days. You'll get tracking by email the day it ships.

Try it for 60 days. If you don't love it, email us for a full refund. Shipping · Returns

by the numbers

real actives. real percentages.

40%

VCIP, a stable, gentle vitamin C

4%

niacinamide to even the look of tone

3%

tranexamic acid for stubborn-looking spots

0%

fragrance or alcohol

why kojilumi

brightening, done right

Not harsh. Not risky. Not just for your face.

kojilumi typical whitening products

Every batch lab tested for mercuryrarely

No hydroquinone or steroidsnot always

Made for face and body: underarms, knees, elbowsface only

Gentle: no stripping, no peelingoften harsh

Cooling + UV steps so spots don't come back

Made in halal-certified facilitiesrarely

60-day money-back guarantee, even if opened

Comparison based on typical drugstore and imported whitening soaps and creams.

consistency is key

what to expect

Brightening isn't overnight. Your skin renews itself roughly every month, so each stage builds on the one before.

day 1–30

the reset
- Skin feels cleaner, softer and smoother
- A fresher, brighter-looking glow
- Your skin gets used to the actives
day 30–60

the fade
- The look of dark spots starts to soften
- Skin tone looks more even
- Underarms, knees and elbows look smoother
day 60–90

the glow
- Fuller, more visible results
- A more even, luminous-looking complexion
day 90+

keep it
- Sun and heat keep making new spots
- Keep your routine going to maintain your glow