• Squalane + Vitamin C Dark Spot Serum
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  • 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

146 reviews

A targeted treatment to add brightness and address pigmentation

Through 1/31, Clean Crew members get 4x points on this serum.

  • Full SizeSize: 30mL/1.01oz
  • 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*
  • 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.
  • Step 1: Cleanser
  • Squalane + Elderberry Jelly Cleanser
  • Squalane + Antioxidant Cleansing Oil
  • Squalane + Tea Tree Cleansing Gel
  • Step 2: Mask
  • Squalane + Glycolic Renewal Facial
  • Step 3: Eye Treatment
  • Squalane + Peptide Eye Gel
  • Squalane + Marine Algae Eye Cream
  • Step 4: Treatment
  • Squalane + Phyto-Retinol Serum
  • Squalane + Lactic Acid Resurfacing Night Serum
  • Squalane + Vitamin C Dark Spot Serum
  • Step 5: Moisturizer
  • Squalane + Omega Repair Cream
  • Squalane + Probiotic Gel Moisturizer
  • Step 6: Oil
  • 100% Squalane Oil
  • Squalane + Vitamin C Rose Oil
  • Squalane + Tea Tree Balancing Oil
  • Step 7: Sunscreen
  • Squalane + Zinc Sheer Mineral Sunscreen
  • Step 8: 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 deep moisture and non-greasy, fast absorption.
  • 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.


Customer Reviews
4.8 Based on 146 Reviews
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United States United States
Best Vitamin C Serum Ever!

I was able to try this product out before it launched and loved it so much that I continued to use it afterward! I have a ton of hyperpigmentation left over from acne. This serum not only helped to lighten the scars I already had, but it also worked to prevent new scars from being left over from my current breakouts. This serum works layers and mixes well with other serums and products too but my favorite way to use this is in my morning routine, after cleansing, and before my moisturizer!

  • Skin Type Oily
  • Top Concern Blemishes
  • Age 18-24
Biossance Squalane + Vitamin C Dark Spot Serum ReviewBiossance Squalane + Vitamin C Dark Spot Serum Review
Geethika K.
United States United States
Very Impressed

Being pregnancy and being brown skin girl, didn't really go hand-in-hand for me as I got lot of Melasma on my cheeks, side burns, lot of freckles on my nose for which this product did a wonderful job fading them and I am very glad I get to test this product. So last year while playing Badminton I got a hit on nose accidentally. So after couple of days I started using this product on that spot as well and to my surprise less than a week I got to say that I don't even recognize that I have a scar over there. Great job creating this BIOSSANCE, you guys impress me with every product. Hoping to see more products and excited to try them all.

  • Skin Type Sensitive
  • Top Concern Uneven Tone & Dark Spots
  • Age 25-34
Biossance Squalane + Vitamin C Dark Spot Serum Review
United States United States
Quick, Noticeable Results!

Within 1 week, I saw noticeable results. This dark spot remover helped fade stubborn dark spots that I had for months. Since I get blemishes fairly often, using the remover daily helped prevent new dark spots from forming, too. In the next 1-3 weeks, I found my makeup would glide in smoother and my overall tone and texture evened out. For the best results, I suggest using this product with Biossance’s lactic acid.

  • Skin Type Sensitive
  • Top Concern Uneven Tone & Dark Spots
  • Age 25-34
Jennifer H.
United States United States
Brightens and smooths

I received this as a complimentary gift from Influenster and Biossance in exchange for my honest review. This serum is amazing! It goes on your skin so nicely! There’s no greasy residue that some other serums can feel like, and it really makes my face glow! I love the ingredients in this product as well! They care about wildlife, and that means a lot to me! So I’ve used this as well on the back of one of my hands because I have dark spots on my hands from aging as well. I really wanted to see if this lightens dark spots or not. Well I have used this TWO times now and I already notice a difference! This really works!

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

I have had such a great experience with this product. I apply it every morning. I have little dark spots on my face and I always felt that my face was very dull-looking. this product helped brighten my face and it looks so fresh and full of life! *Note: I received the Biossance Squalane + Vitamin C Dark Spot Serum VoxBox complimentary for testing purposes from Influenster.*

  • Skin Type Oily
  • Top Concern Uneven Tone & Dark Spots
  • Age 25-34


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.
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