What it is: Combines two skin-care powerhouses, L-ascorbic acid (proven in research to be the purest, best-for-skin form of the antioxidant vitamin C) and moisturizing hyaluronic acid (a hydrator that’s naturally present in the body). The unique two-part design maximizes potency and freshness, delivering a serum that stays active all the way through its use.

What it does: Before your first use, mix the super potent 20% vitamin C powder with the hyaluronic acid serum. (There are three different molecular sizes of hyaluronic acid present to penetrate different layers of the skin, as well as the antioxidant superfruit Australian kakadu plum.) The ingredients work synergistically to help brighten the appearance of the skin, significantly improving its firmness, tone, texture, and hydration and leaving it looking radiant, luminous, and healthy.

Suitable for all skin types. Apply to clean, dry face and neck in the morning and evening.

Research Results: 

Immediately, after one use:

- 100% of women showed a dramatic improvement in skin hydration.

After four weeks of twice-daily use:*

- 90% of women said their skin looked and felt brighter.

- 90% of women said their skin looked and felt smoother.

- 85% of women said their skin looked healthier.

How to use: 

The unique two-part design delivers a serum that maximizes potency and stays active all the way through its use (unlike many vitamin C serums). Here’s how to mix it up:

STEP 1

Unscrew the tip of the serum activator and squeeze all the contents into the bottle containing the pure vitamin C powder.

STEP 2

Screw the cap on the bottle and shake well until the powder fully dissolves.

STEP 3

Replace the cap with the dropper; it's now ready to use.

Goop: Goop is a lifestyle brand with its roots in content across key pillars: wellness, beauty, food, style, and travel. Within those pillars, goop curates and sells a tightly edited array of products and makes its own goods in beauty, fashion, and wellness.