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Brighten Serum

Brighten Serum

2% Ascorbyl Glucoside + Ferulic Antioxidant Serum

30 ml / 1.01 fl oz

Fades post-blemish marks and brightens uneven skin tone. Formulated with stable, non-stinging vitamin C that will not turn brown in the bottle.

Dermatologically checkedDispatched in 24hClean European GMP
  • Stable 2% Ascorbyl Glucoside: Advanced vitamin C derivative that delivers potent brightening without oxidizing or stinging.
  • 1% Ferulic Acid + 1% Sea-Buckthorn: Amplifies antioxidant defense to improve firmness and protect against dark spot recurrence.
  • Dermatologically Tested: Verified non-irritating on human subjects under clinical supervision.

The problem it solves

Why this step exists, and what it changes.

Traditional vitamin C (L-ascorbic acid) is notoriously unstable. It oxidizes into a brown liquid in the bottle within weeks, stings on application, and can trigger breakouts on sensitive skin. Yet weak alternatives fail to move stubborn dark spots. Brighten Serum uses a stabilized clinical derivative that stays active to the last drop.

How it works on the skin

Combines 2% ascorbyl glucoside with 1% ferulic acid and 1% organic sea-buckthorn oil. Ascorbyl glucoside converts into active vitamin C inside the skin, where it inhibits the tyrosinase enzyme to fade dark spots and even out tone without burning on contact. Ferulic acid stabilizes the formula and defends against free radical damage, while dual-weight hyaluronic acid keeps skin hydrated and radiant.

What is in it

  • 2% Ascorbyl Glucoside (vitamin C)High-stability vitamin C derivative that fades sunspots and post-breakout discoloration without stinging or oxidizing.
  • 1% Ferulic AcidPlant antioxidant that supports skin firmness and multiplies vitamin C efficiency.
  • 1% Sea-Buckthorn OilCertified organic berry oil rich in rare palmitoleic acid (Omega-7) that supports barrier resilience and radiance.
  • Hyaluronic AcidPlumps skin with moisture, ensuring a dewy finish that sits smoothly under SPF.

This one is scented. The fragrance is named in the list below.

How to use it

  1. 01Dispense 3 to 4 drops onto clean fingertips.
  2. 02Press smoothly across face and neck every morning after cleansing.
  3. 03Follow with moisturizer and always finish with broad-spectrum SPF to protect your brightening results.
How often
Morning & Evening
Where in the routine
After cleansing, before moisturizer.

Who it is for. And who it is not.

Buy it if

  • Old breakout marks and sunspots linger for months after blemishes heal.
  • Your complexion looks dull, tired, or uneven in morning light.
  • You tried high-strength vitamin C serums and found them stinging or irritating.

Skip it if

  • You have a nut allergy. Sweet almond oil is present in this formula.
  • What you are calling dullness is really rough, built-up surface skin rather than uneven tone. Resurface Toner is for that.
  • You will not wear sunscreen in the morning. Fading marks while allowing UV to make new ones cancels the work.

Works with

The rest of the routine this one belongs to.

Calibrate the rest of your ritual.

Skincare works best as a calibrated system rather than a collection of isolated bottles. Nine questions and sixty seconds build your complete routine around your exact skin profile. A routine subscription saves 20% rather than 20%, and brings the Eye Reset patches, the 8-week Skin Plan and a $25 credit after your third shipment.

What people say about Brighten Serum

  • Dark spots I had given up on are fading

    Two summers of sunscreen neglect left marks along my cheekbones. The brightening step went on every night without a single sting, and by week seven the edges had clearly softened. My foundation shade finally matches my whole face again.

    Priya S.. Verified purchase.

Questions

  • No. Ascorbyl glucoside is exceptionally stable and resistant to heat and light, remaining clear and effective down to the last drop.

Brighten Serum
$41.60 every 6 weeks