Your Favorite Brightening Serum is Back

person angelina swanson
calendar_today Jan 08, 2026
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After a short hiatus, our beloved Ultra-C Brightening Serum is finally back! A small change in ingredient sources caused the formula to separate and texture to fall short of our standards. We listened closely to your feedback, researched extensively, and rigorously tested the serum until it was perfect.

The New Ultra-C Brightening Serum

The new formula combines 10% stabilized Vitamin C with our Herbalbright Complex™, creating a serum that brightens, protects, and revitalizes your skin. Vitamin C, extracted from citrus (and gently processed to remove the photosensitizing component) and vitamin E team up to support collagen production, while kojic acid and bearberry extract gently exfoliate and improve uneven skin tone. Prebiotic lemon peel bioferment brightens and keeps your skin microbiome balanced, and a pH of 5.4 protects your natural barrier.

Why We Love It:

Brightens hyperpigmentation, sun spots and dull areas
Smooths rough skin and reduces fine lines
Protects skin from environmental stressors
Supports healthy, balanced skin with gentle exfoliation

WHO BENEFITS?

SKIN TYPES: 3, 4, 5, 8

HOW TO USE

SKINCARE STEP 4: Treat
Perfect for morning* or night, the serum absorbs beautifully into the skin, giving you a radiant, luminous glow even in the depths of winter. Massage a few drops into clean skin and follow with your favorite moisturizer.

If you’ve been waiting for its return, we’re thrilled to welcome it back to your daily routine. And if this is your first time trying it, your skin is in for a real treat.

*Our stabilized vitamin C does not cause photosensitivity.

Whether you’re welcoming back a tried-and-true favorite or trying it for the first time, the Ultra-C Serum is your mid-winter glow secret.

PAIRS WELL WITH:
The Ultra C Brightening Serum is best used either morning or night, as your first leave on product, followed by your favorite moisturizer. There is no need to use this powerful serum twice a day - our skin can only handle so much!

DOES NOT PAIR WELL WITH:
The Ultra C Serum is one of our few facial serums that doesn't play well with the Blue Sapphire Concentrated Brightening Oil. The two together is just too many "actives" for our skin to handle, so if you love the Blue Sapphire Concentrated Brightening Oil as much as we do, we recommend using that one in the evening and the Ultra C Serum in the morning.

Sample Skin Ritual for Ultimate Skin Brightening:

AM:
STEP 1: Cleanse - with your favorite aos cleanser. *Pro Tip: If your skin feels dry or tight in the morning, skip this step.
STEP 2: Mask & Exfoliate - Gently scrub using the Cucumber Face Polish (or your favorite manual scrub)

STEP 3: Tone & Adjust pH - Mist your favorite Hydrosol or Toner onto skin and leave on or remove (as you prefer) with a soft cloth.

STEP 4: Treat - Massage in a few drops of the Ultra C Brightening Serum and let it sink in for a few moments.

STEP 5: Moisturize - Apply your favorite facial moisturizer. We recommend using spf 15 or higher.

PM:

STEP 1: Cleanse - with your favorite aos cleanser
STEP 2: Mask & Exfoliate - apply the Coconut Lactic Peel. Remove and rinse skin after 15 minutes.

STEP 3: Tone & Adjust pH - Mist your favorite Hydrosol or Toner onto skin and leave on or remove (as you prefer) with a soft cloth.

STEP 4: Treat - Mix a few drops of the Sweet Lupine Firming & Brightening Serum (mix with a few drops of the Blue Sapphire Concentrated Brightening Oil, if you like) and let it sink in for a few moments.

STEP 5: Moisturize - Massage in the Beauty Sleep Overnight Brightening Mask. If you didn't use the Blue Sapphire Concentrated Brightening Oil in the last step, you can add a few drops to this mask. Leave it on all night (no need to wash it off in the morning, it will fully absorb into your skin!).