Online Exclusive

Firming Vegan Collagen Prep Serum Refill

$54

Online Exclusive

Firming Vegan Collagen Prep Serum Refill

$54

Firm. Plump. Rejuvenate.


Our 4-in-1 super serum firms, brightens, plumps, and hydrates in 4 weeks without irritation. Our skin philosophy is centered on this “prep step” - the essential, second step in your daily routine that delivers an immediate, healthy glow while conditioning skin over time. The Prep Serum “preps” skin to a balanced state after cleansing and prior to moisturizing, creating a nourished canvas that brings visible radiance and won’t pill under makeup.

Extend the life of your bottle with this refill pouch. Containing 50% more than our standard size - more product, more value and less waste.

A $69 value.

Free US returns

Available at

Hydrates

Cruelty Free

Suitable for sensitive skin

Fragrance Free

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SUITABLE FOR SENSITIVE SKIN
VEGAN
CRUELTY FREE
DERMATOLOGIST TESTED
CLINICALLY TESTED
GLUTEN FREE
NUT ALLERGEN FREE

CC

Visible results in 30 days

BEFORE
AFTER 30 DAYS

Visible results in 30 days

97%

agree these products were gentle and non-irritating

92%

agree skin looks healthier

92%

 agree these products work better together

89%

agree skin appears more youthful

4.9
Rated 4.9 out of 5 stars
Based on 428 reviews
Total 5 star reviews: 406 Total 4 star reviews: 19 Total 3 star reviews: 2 Total 2 star reviews: 0 Total 1 star reviews: 1
99%would recommend this product
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428 reviews
  • A
    Abigail
    October 6, 2025
    Rated 5 out of 5 stars
    5 Stars

    Product is great. Wish we could order a larger refill size in the serum.

  • PD
    Patty D.
    Verified Buyer
    How old are you? 55+
    What is your skin type? Normal
    October 6, 2025
    How old are you? 55+
    What is your skin type? Normal
    Rated 5 out of 5 stars
    Love love this product

    Outset's prep serum is the best one out there. I will not buy any other brand. I love it. My face glows with this product. Thank you.

  • JS
    Justin S.
    Verified Buyer
    How old are you? 35 - 44
    What is your skin type? Sensitive, Combination, Acne Prone
    October 5, 2025
    How old are you? 35 - 44
    What is your skin type? Sensitive, Combination, Acne Prone
    Rated 5 out of 5 stars
    This serum is amazing!

    I have sensitive skin and since I started a daily regimen using The Outseit products, my face has never looked better!!!! Highly recommend! This is coming from a 38 year old man with really fair skin as well.

  • WW
    Wendy W.
    Verified Buyer
    How old are you? 55+
    What is your skin type? Dry
    October 4, 2025
    How old are you? 55+
    What is your skin type? Dry
    Rated 5 out of 5 stars
    Best serum

    I absolutely love the serum and that it’s refillable is so important to me. I wanted the best vegan serum available and I’ve been using it for several years. When I found out it’s refillable I was sure that’s the one for me. I’ve made it a point to cut down on plastic and finding the best choice . I highly recommend it

  • CC
    Colleen C.
    Verified Buyer
    How old are you? 55+
    What is your skin type? Normal, Dry
    October 3, 2025
    How old are you? 55+
    What is your skin type? Normal, Dry
    Rated 5 out of 5 stars
    Can’t go without it!

    I wear this serum day and night under my moisturizer, it’s fantastic!