• Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum
  • play-video
  • Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Squalane + Vitamin C Dark Spot Serum

Squalane + Vitamin C Dark Spot Serum

467 reviews

A targeted 10% vitamin c treatment to brighten and fade dark spots

  • Bonus SetSize: 30mL/1.01oz
  • Full sizeSize: 30mL/1.01oz
Bright news for dark spots: coming 12.29
Sign up and be the first to know about new product launches, offers and more.
  • EWG

  • Vegan

  • Cruelty Free

  • Nontoxic

  • Paraben free

  • PEG free

Clinical Report

% Confirm

  • 100%agree this product helps improve the look of dark spots*
  • 100%agree this product improves the look of sun damage*
  • 97%showed improvement in uneven skin tone*
Limited-time offer: Get a FREE travel-sized Zinc Sheer Mineral Sunscreen with a full-sized Vitamin C Dark Spot Serum, while supplies last or by 5/16/21.

This powerful and lightweight vitamin C for dark spots serum:
  • Delivers a boost of brightness with 10% vitamin C, while white shiitake mushroom fades dark spots
  • Shows visible brightening instantly, while it works over time to dissolve pigmentation and prevent new discoloration
  • Our unique blend of ingredients is precisely calibrated to not cause irritation like traditional vitamin C serums

This first-of-its-kind serum features a proprietary white shiitake mushroom extract blended with our unique derivative of vitamin C, and delivers quicker, more powerful, longer-lasting results. Not only does it start degrading dark spots immediately, it keeps working every day to prevent new ones from forming.

Learn more about our newest launch, Vitamin C Dark Spot Serum.  Deep dive into our revolutionary formula and read on our blog post why a higher concentration isn't always more effective.

For external use only. Use only as directed. Avoid eye area. We recommend a patch test prior to use if you are particularly sensitive. If irritation occurs, consult a dermatologist.

  • EWG

  • Vegan

  • Cruelty Free

  • Nontoxic

  • Paraben free

  • PEG free


    Massage 2-3 pumps of the serum onto a cleansed face and neck, morning and night. Use before other treatment products, and follow with any Biossance moisturizer.

Layering Guide:

  • Step 1: Cleanser
  • Squalane + Elderberry Jelly Cleanser
  • Squalane + Antioxidant Cleansing Oil
  • Squalane + Tea Tree Cleansing Gel
  • 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% vitamin C
  • 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.
  • White Shiitake Mushroom: Synergistic mushroom blend that starts degrading dark spots immediately and continues correcting discoloration with continued use.

All Ingredients:

Water/Aqua/Eau, Glycerin, 3-O-Ethyl Ascorbic Acid, Squalane, Lentinus Edodes Mycelium Extract, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Glycyrrhiza Glabra (Licorice) Root Extract, Sodium Hyaluronate, Citric Acid, Polyacrylate Crosspolymer-6, Acacia Senegal Gum, Xanthan Gum, Sodium Gluconate, Sodium Citrate, Phenoxyethanol, Ethylhexylglycerin.

  • 1Will this get rid of my Melasma/hyperpigmentation/acne scarring?

    With continued use of this serum and sunscreen protection you can see an overall more even skin tone and help fade visible discoloration in the skin.
  • 2Why 10% of L-ascorbic acid/ Vitamin C?

    This is a daily use treatment, a lifestyle serum if you will. 10% has been shown to be an effective and safe amount for daily use. A higher percentage does not equal better or faster results. It is actually possible to have a higher chance of sensitivity when using higher %’s. Even if the % is higher it does not mean that the ingredient is acting on the skin in a stronger manner. I would value stability over higher % for better results and less chance of degradation/irritation. The stability of Vitamin C within a formula is much more important than the percentage.
  • 3Should this be used for spot treat or all over application?

    Results are better if applied all over - our formula only targets excess melanin.
  • 4Is it fragrance free?

    No synthetic fragrance or essential oils are added, so it is completely fragrance free. The ingredients themselves may emit a mild scent that should dissipate after application


Customer Reviews
4.6 Based on 467 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
United States United States

I love this serum. I first received a sample from Sephora and since then I have been hooked. It is quite pricey so I can only really afford to purchase during sales however this serum is worth it. Sinks into my skin quickly and leaves an amazing vitamin C glow that is hard to beat ( I have tried numerous vitamin c serums). I also find it to be very moisturising. Cannot recommend it enough.

  • Skin Type Combination
  • Top Concern Uneven Tone & Dark Spots
  • Age 25-34
Avonnie J.
United States United States
Dark spot and squalane

I love love this serum I definitely see improvement in my skin tone , the squalane oil is so nourishing I love it

  • Skin Type Combination
  • Top Concern Uneven Tone & Dark Spots
  • Age 35-44
United States United States
So smooth!

Love the texture of this serum and how it feels on my skin. My skin absorbs it very nicely and I feel pampered whenever I use it. Been using it for about 2 weeks and see my dark spots starting to fade.

  • Skin Type Combination
  • Top Concern Age Prevention
  • Age 25-34
United States United States

I purchased this in hopes of clearing dark spots on my face, neck and chest. So far, I nothing has truly faded. I even ordered a second bottle and am hoping that longer term use will yield results as the product is not cheap. So, hopeful I will remain!

  • Skin Type Normal
  • Top Concern Blemishes
  • Age 25-34
A Biossance Customer
United States United States
Made my melasma darker :(

I had high hopes for this product and have been using it religiously for a few months. My melasma on my forehead and cheeks is now worse after using it vs lighter. This may be good for dark spots caused by acne and picking, but if you’re looking for a melasma fix this isn’t it.

  • Skin Type Combination
  • Top Concern Uneven Tone & Dark Spots
  • Age 35-44

Hello Elizabeth- Thank you for sharing your experience with us! We’re so sorry that you were not entirely satisfied with your purchase of Vitamin C Dark Spot Serum. If someone has not already done so, a valued member of our customer care team will reach out via customercare@biossance.com or you can reach out to us instantly on LiveChat or Video Chat by finding the gray chat bubble on the bottom right of Biossance.com and we will be happy to help you find something better suited for your skin’s needs. If you purchased this on Biossance.com please visit biossance.com/a/returns to return the product. Thank you & have a wonderful day, The Biossance Team


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.


    Our squalane is derived from renewable sugarcane.

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

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

    Vegan, cruelty-free and nontoxic for people and the environment.

    All of our inner and outer cartons. (This excludes our airless bottle components and pumps.) We are working towards more sustainable solutions.
Back Shop All
Your order has qualified for free shipping

There are no items in your bag.
Keep Shopping

Subtotal $0.00