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Revealer Skin-Improving Foundation SPF 25 - Sample Card

+ $8 Site Credit

Card 2 - Medium
Light+ Neutral Warm 170 - Medium Tan Neutral 280

Free Shipping on US Orders $40+ & Free Returns

Clean SPF Foundation for Skincare Freaks.
Sample our medium coverage SPF treatment foundation with a natural, dreamy finish and get a $8 site credit for any future purchase.

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Benefits & Ingredients
Niacinamide + Caffeine


Squalane + Arnica + Provitamin B5


Peptides + Hyaluronic Acid


Mineral Reef-Safe SPF + Artemisia Flower Extract


Review Highlights
Absolutely obsessed, can't recommend enough!

My skin actually looks better and better with every use—blemishes are improved, and I look more moisturized and radiant overall.

New Holy Grail Foundation

Beautiful coverage, feels like nothing is on. The color is a perfect match as well! Super happy customer! Now a life long customer!

Clinically Proven Results


97% agreed this product blended easily to become like a second skin.*

97% agreed this product provided the desired coverage*

After 4 weeks:

100% agreed my skin's texture is more smooth*

97% agreed my pores are less visible when I wear this product*

100% saw improvement in hydration on bare skin** 

100% saw improvement in skin firmness on bare skin**

*based on a consumer study with 32 females 
**based on a clinical measurement study with 32 females

Clinically tested. Dermatologically tested.
Non-comedogenic. Non-acnegenic. Non- irritating. 
Hypoallergenic. Safe for sensitive skin.

Foundation That Looks Like Real Skin

Skin-reviving SPF treatment foundation instantly blends like a second skin with a natural dreamy finish to blur, visibly smooth texture + minimize pores. Invisible, ultra-fine powder crystals are suspended in the unique liquid formula to add dimension for healthy, alive skin that still looks like you. Medium, buildable coverage lasts all day.

Foundation That Actually Improves Your Bare Skin

Clinically proven powerhouse blend of skincare actives like Hyaluronic Acid, Niacinamide, Peptides, and Squalane work to hydrate, brighten, plump, firm, and soothe. Broad-spectrum, reef-safe mineral SPF 25 and Artemisia Flower Extract help protect against environmental and blue light damage. The stuff dream skin is made of.

Foundation That Doesn't Feel Makeup-y

Clean, comfy, high-performance foundation. Revealer’s breathable, fresh + freeing texture is formulated for high skin affinity so it blends into nothingness. Never stiff, thick, cakey, or makeup-y. Silicone-free. Hypoallergenic. Safe for sensitive skin. Non-acnegenic.

Kosas Clean

Vegan, cruelty-free and gluten-free. Free of silicone, mineral oil, talc, fragrance, parabens, sulfates, and phthalates.

Check out our Kosas Clean page for the full list.

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Rated 3.0 out of 5 stars
Based on 6 reviews
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 2 Total 1 star reviews: 1
33%would recommend this product
6 reviews
  • MD
    M D F.
    Verified Buyer
    13 seconds ago
    Rated 5 out of 5 stars
    Best foundation

    Love this foundation 70 years old and I think it makes my skin smoother. Just trying to figure out which shade is best. Several work very well.

  • JT
    Jill T.
    Verified Buyer
    1 month ago
    Rated 1 out of 5 stars
    Dull finish and caused breakouts

    I tried so hard to like this after reading so much hype, but it caused breakouts and itchiness each time. I’m 45 and haven’t had skin problems like this in decades! Brands I’ve used without issues include Chanel, Bare Minerals, Nars, Shiseido, and Laura Mercier. I was seeking a perfect color match but each time I tried it, my skin felt clogged immediately and I’d get deep-forming pimples over the next few days. I waited at least a week between attempts, without using any makeup at all to make sure nothing else in my skin care routine was causing it, and once the breakout would clear, I’d try another shade, immediately resulting in another breakout. After 3 tries, I have to conclude there is something in the Kosas formula that my skin just doesn’t like. The finish also looks dull and matte, and settles into lines and pores, as well as turning to a kind of flaky texture after about an hour. Bummed to have spent almost $30 for the two sample packs (foundation and concealer) only to have to start at square one in my search.

    KC Profile picture for Kosas Cosmetics
    Kosas Cosmetics
    1 month ago

    Hi Jill, sorry to hear Revealer Foundation was not a match for you. Thank you for giving it a try.

  • CS
    Christine S.
    Verified Buyer
    1 month ago
    Rated 2 out of 5 stars
    Too drying

    Too drying for my mature skin

  • AO
    AJ O.
    Verified Buyer
    3 months ago
    Rated 2 out of 5 stars
    Actual product was nominal

    samples were a bit too small to gauge efficacy, would love to see them built more like the concealer sizes. I had high hopes but the formula appeared to be too drying based on the limits amount I was able to use.

  • SS
    Sindhu S.
    Verified Buyer
    4 months ago
    Rated 5 out of 5 stars
    beautiful finish and perfect amount to sample

    lots of foundation provided to swatch color and do a wear test

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