

Vitamin C works. If you can stand it.
What It Does
Antioxidant defense, brightening included.-
01
Defends Against Damage
A powerful antioxidant complex neutralizes the free radicals from sun and pollution that drive premature aging — your daily layer of protection.
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02
Brightens & Evens
Vitamin C is the gold-standard brightener, fading the look of dullness and uneven tone for a more radiant, luminous complexion.
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03
Time-Release Delivery
The lipid-soluble form releases gradually into the skin, extending its protecting and correcting benefits well beyond application.
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04
Gentle Enough for All
Esterified and fat-soluble, it skips the sting and irritation of L-ascorbic acid — tolerable even for oily and sensitive skin.
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05
Stays Stable
Unlike water-based vitamin C that oxidizes and browns within weeks, this stable ester stays potent and effective far longer.
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06
Silky, Never Greasy
A lightweight finish that absorbs cleanly and layers beautifully under moisturizer and sunscreen — the feel reviewers love.
The antioxidant trio, stabilized.
Tetrahexyldecyl Ascorbate
A lipid-soluble, highly stable vitamin C ester that penetrates deeply and time-releases into the skin — brightening tone, supporting collagen, and defending against free radicals without the sting or oxidation of L-ascorbic acid.
Vitamin E (Tocopherol)
A nourishing antioxidant that works synergistically with vitamin C — together they neutralize a broader range of free radicals than either does alone.
Ferulic Acid
A plant antioxidant that stabilizes the vitamin C and E complex and boosts its photoprotective power — the classic "CE Ferulic" pairing dermatologists rely on.
Time-Release System
The lipid-soluble delivery means the antioxidants release gradually rather than all at once — extending protection and correction throughout the day.
Vitamin C, Reformulated
The same brightening, protective power as classic vitamin C — in a stable, lipid-soluble form Dr. Colombo calls the best-feeling she's ever used.

HOW TO USE
A morning shield of glow.
01 CLEANSE FIRST
Start with clean skin in the morning. Vitamin C antioxidants work best applied early, before the day's sun and pollution exposure.
02 APPLY A FEW DROPS
Smooth a thin layer over the face. Because it's lipid-soluble and time-released, a little goes a long way and lasts longer on skin.
03 MOISTURIZE, THEN SPF
Follow with your moisturizer, then sunscreen. Vitamin C and SPF are a powerful daytime antioxidant-plus-protection pairing.
04 ALTERNATE WITH YOUR RETINOID
Use The Booster in the morning and your retinoid, like The Reverser, at night — the classic vitamin-C-by-day, retinoid-by-night routine.
Sensitive skin? Because it's esterified and fat-soluble, The Booster is gentler and longer-lasting than typical vitamin C — but if your skin is sensitive, start every other day and build up. Very sensitive skin may prefer the lower vitamin C concentration in The Age Eraser instead.
Full Ingredients
CUSTOMER REVIEWS
Real Reviews. Real Results.
Everything you need to know before buying.
What kind of vitamin C is in The Booster?
I usually get burning from vitamin C serums — can I use this?
Is it good for oily or acne-prone skin?
When should I apply it?
Can I use it with my retinoid?
Will it oxidize and turn brown like other vitamin C?
How does the subscription work?
The vitamin C you'll actually keep using.
The gentle, fragrance-free cleanse that calms as it works — formulated by the dermatologist who treats sensitive and rosacea-prone skin every day in her practice.
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