Squalane + Lactic Acid Resurfacing Night Serum

10% lactic acid serum delivers dramatically smoother, more luminous skin overnight.  

1568 reviews
Bestseller Squalane + Lactic Acid Resurfacing Night Serum
  • Squalane + Lactic Acid Resurfacing Night Serum
  • play-video
  • Lactic Acid Resurfacing Serum in Water
  • Goop/texture of Lactic Acid Resurfacing Night Serum
  • Infographic with ingredients found in the formula of Lactic Acid Resurfacing Night serum
  • Positive Clinical Study Results based on one use
  • up close before and after demonstrating clearer skin
  • AM and PM Routine infographic with Vitamin C Dark Spot Serum and Lactic Acid Resurfacing Night Serum
  • A woman applying the Squalane + Lactic Acid Resurfacing Night Serum to her face
  • Squalane + Lactic Acid Resurfacing Night Serum
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Squalane + Lactic Acid Resurfacing Night Serum

10% lactic acid serum delivers dramatically smoother, more luminous skin overnight.  

1568 reviews

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  • EWG EWG

    EWG

  • Vegan Vegan

    Vegan

  • Cruelty Free Cruelty Free

    Cruelty Free

  • Nontoxic Nontoxic

    Nontoxic

  • Paraben free Paraben free

    Paraben free

  • Synthetic fragrance free Synthetic fragrance free

    Synthetic fragrance free

  • PEG free PEG free

    PEG free

Clinical Report

% Confirm

  • Panelists showed +113% improvement in skin hydration after 1 night*
  • 100% showed improvement in the appearance of pores*
  • 100% showed a visible reduction in the appearance of fine lines and wrinkles*
  • This rapid retexturizing serum with 10% vegan lactic acid dissolves dead surface cells and reveals soft, luminous new skin below.
  • Unlike other treatments with long wait times, results are visible quickly—as soon as overnight, or after only 1-2 weeks.
  • Lactic acid is a “does-it-all” ingredient that fights uneven texture, minimizes signs of aging, and can be layered with other Biossance treatments to amplify their benefits.
  • Award winner
    • 2020 Women’s Health Beauty Awards “Best Serum”
    • 2021 Glamour Beauty Awards "Best Exfoliator"

Take rough, bumpy skin texture and smooth it out in just one week. The gentle intensity of this exfoliating AHA lactic acid face serum delivers a smoother and softer texture, visibly diminished fine lines, and an overall brighter complexion, while the squalane at the heart of the formula soothes and fortifies to make skin stronger and healthier from within. Powerful but non-irritating, the 10% vegan lactic acid formula delivers silky skin—at any age.

Learn more about our #1 bestseller, Lactic Acid Resurfacing Night Serum.

Shop all clean face serums & masks.

Sunburn alert: ‘Contains Alpha Hydroxy Acids (AHAs) that may increase skin’s sun sensitivity and the chance of sunburn. Use only as directed. Avoid contact with the eyes. If irritation persists discontinue use and consult a physician. It is recommended that prior to exposure to the sun, users cover areas where AHAs have been applied with sunscreen. Contact of the product with the skin must be of limited frequency or duration.’

  • EWG EWG

    EWG

  • Vegan Vegan

    Vegan

  • Cruelty Free Cruelty Free

    Cruelty Free

  • Nontoxic Nontoxic

    Nontoxic

  • Paraben free Paraben free

    Paraben free

  • Synthetic fragrance free Synthetic fragrance free

    Synthetic fragrance free

  • PEG free PEG free

    PEG free

Directions:

    Massage 2-3 pumps of lactic acid serum into your skin at night, after applying your Squalane Eye Cream. Follow with your Squalane + Omega Repair Cream for extra hydration. (Don’t forget your neck and décolleté.) Gentle enough to use nightly.

Layering Guide:

  • Step 1: Cleanser
  • Squalane + Elderberry Jelly Cleanser
  • Squalane + Antioxidant Cleansing Oil
  • Squalane + Amino Aloe Gentle Cleanser
  • Step 2: Toner
  • Squalane + BHA Pore Minimizing Toner
  • Step 3: Mask
  • Squalane + Glycolic Renewal Facial
  • Step 4: Eye Treatment
  • Squalane + Peptide Eye Gel
  • Squalane + Marine Algae Eye Cream
  • Step 5: Treatment
  • Squalane + Phyto-Retinol Serum
  • Squalane + Lactic Acid Resurfacing Night Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Step 6: Moisturizer
  • Squalane + Omega Repair Cream
  • Squalane + Probiotic Gel Moisturizer
  • Step 7: Oil
  • 100% Squalane Oil
  • Squalane + Vitamin C Rose Oil
  • Squalane + Tea Tree Balancing Oil
  • Step 8: Sunscreen
  • Squalane + Zinc Sheer Mineral Sunscreen
  • Step 9: Makeup
  • Apply foundation, BB/CC creams and any color cosmetics
  • Anytime: After Step 1, Over Makeup, or Throughout the Day
  • Squalane + Omega Repair Hand Cream
  • Squalane + Hyaluronic Toning Mist
  • Squalane + Rose Vegan Lip Balm
10% Vegan Lactic Acid
  • SQUALANE: Derived from sugarcane, it mimics body's natural hydrating oils to provide weightless moisture to deliver active ingredients deep into the skin and prevent overdrying.
  • Clover: Boosts lactic’s exfoliating benefits by revving up cell turnover. It also helps reset and renew skin after each day’s dose of UV rays, blue light and pollution.

All Ingredients:

Water/Aqua/Eau, Caprylic/Capric Triglyceride, Lactic Acid, Squalane, Glycerin, Sodium Hydroxide, Cetearyl Olivate, Propanediol, Sorbitan Olivate, Cetearyl Alcohol, Lespedeza Capitata Leaf/Stem Extract, Polyacrylate Crosspolymer-6, Acacia Senegal Gum, Sodium Gluconate, Xanthan Gum, Phenoxyethanol, Ethylhexylglycerin, Lavandula Angustifolia (Lavender) Oil, Linalool.

  • Yes, Lactic Acid Resurfacing Night Serum is safe for daily use and does not need to be washed off. However, you can absolutely cleanse your skin during your AM routine if you so desire.
  • The AHAs in Lactic Acid Resurfacing Night Serum make your skin more sensitive to the sun, so it is always recommended to wear SPF during the day.
  • Lactic Acid Resurfacing Night Serum has a creamy texture that penetrates without leaving a sticky after feel.
  • Lactic Acid Resurfacing Night Serum exfoliates skin, which can help reduce the appearance of discoloration and uneven skin tone. Be sure to wear SPF during the day.
  • Lactic Acid Resurfacing Night Serum hasn’t been tested for use with retinol. If you have sensitive skin, it is always a good idea to do a patch test first. If you were to use a conventional retinol with this product a good practice would be to alternate days between this and your retinol product. A great alternative is Phyto-Retinol Serum, which can be used with this and doesn’t have the same photosensitivity as traditional retinol. We suggest Phyto-Retinol Serum in the morning and Lactic Acid Resurfacing Night Serum at night. If you want to use them together, apply Phyto-Retinol Serum first, then layer Lactic Acid Resurfacing Night Serum over.

CUSTOMER REVIEWS CUSTOMER REVIEWS

Customer Reviews
4.6 Based on 1,568 Reviews
5 ★
77% 
1215
4 ★
13% 
204
3 ★
4% 
61
2 ★
2% 
35
1 ★
3% 
53
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A
09/24/2022
Anonymous
United States

Great product!

I really like this product! It smells amazing, so it’s very soothing to apply at bedtime. It feels light yet deeply nourishing, and my skin feels softer immediately after using. I think this honestly has improved my skin, and I like not having to worry about what’s in it.

  • What is your skin type? Dry
  • What skin issue concerns you most? Uneven Tone & Dark Spots
  • How old are you? 35-44
SS
09/23/2022
Sheryl S.
United States United States

Love it

This was perfect for my skin and feels wonderful.

  • What is your skin type? Combination
  • What skin issue concerns you most? Age Prevention
  • How old are you? 55
GG
09/21/2022
Gab G.
United States United States

Love it

this makes my skin look incredible!

A
09/19/2022
Anonymous
United States United States

Great!

I really like this serum. It’s not sticky and gets absorbed very quick. I have sensitive skin and did not react to it. Used along with the other products, I feel a difference on my skin texture.

  • What is your skin type? Sensitive
  • What skin issue concerns you most? Fine Lines & Wrinkles
  • How old are you? 55
A
09/18/2022
Anonymous
United States United States

Biossance

This is a gentle type of treatment and leaves my skin feeling nice. It also seems to help with keeping acne at bay.

  • What is your skin type? Sensitive
  • What skin issue concerns you most? Fine Lines & Wrinkles
  • How old are you? 55

OUR SUSTAINABILITY PROMISE

Our commitment to people and planet applies to everything we create. We innovate every aspect of our company and supply chain to do better for our world and be the leading pioneers in sustainable beauty.

no_comp_globe
  • RENEWABLE RESOURCES

    Our squalane is derived from renewable sugarcane.
  • PLANET-FIRST PROCESSES

    Formulated using the latest sustainable methods. No deforestation and developed in far proximity from rainforests. Low water usage.
  • CONSCIOUS PACKAGING

    Sugarcane and Forest Stewardship Council-certified boxes (FSC).
  • SAFE PRODUCTS

    Vegan, cruelty-free and nontoxic for people and the environment.
    Vegan Vegan VEGAN Cruelty Free Cruelty Free CRUELTY
    FREE
    Paraben free Paraben free PARABEN
    FREE
    Nontoxic Nontoxic NONTOXIC Synthetic fragrance free Synthetic fragrance free FRAGRANCE
    FREE
    Synthetic fragrance free Synthetic fragrance free SYNTHETIC
    FRAGRANCE
    FREE
    FSC certified wood FSC certified wood FSC
    CERTIFIED
    WOOD
    Baking soda free Baking soda free BAKING
    SODA FREE
    PEG free PEG free PEG FREE
  • READY TO RECYCLE

    All of our inner and outer cartons. (This excludes our airless bottle components and pumps.) We are working towards more sustainable solutions.