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    C-Serum® Seaweed Filtrate Face Serum 50ml

    Dermatologist Tested

    Vitamin and Mineral Rich Serum For Well-Hydrated Skin
    Our premier daily facial serum for all skin types is an intensive concentrate of our exclusive, nutrient-rich, sustainably-harvested Laminaria Digitata Seaweed extract to help replenish moisture and provide glowing skin benefits. Use alone or under moisturizer for an extra boost of hydration. Your skin will feel and look smoother with more bounce.

    Which skin type is it good for?
    ✔ Sensitive
    ✔ Dry
    ✔ Oily
    ✔ Dehydrated
    ✔ Problem

    What is the texture?

    Size: 50 ml / 1.7 fl oz

    What It Is?

    A lightweight, oil-free serum that helps reduce the appearance of fine lines and wrinkles and assists in maintaining proper moisture balance.

    Short for cyto-serum, C-Serum® is a highly concentrated extract from Laminaria Digitata Seaweed, rich in 42 trace elements and minerals, 18 amino acids, 12 vitamins, phyto -hormones, and natural anti-oxidants.

    Who Is It For?

    Every skin type can see and feel softer and smoother skin.

    Why You'll Love It?

    This multi-award winning product has been a number one seller and editor’s pick since it was launched nearly 40 years ago.

    Professionally formulated to be the first layer of the iconic Repêchage® Four-Layer Facial®, it is the secret for perfect skin for esthetician’s and consumers—a miracle fluid that is a must have for more luminous skin! See results with daily use.

    Good To Know

    A vegan-friendly formula that is cruelty free, fragrance free, paraben free and perfect for everyone.


    Use twice daily in the morning and evening.

    Full Ingredients

    Water/Aqua/Eau, Glycerin, Laminaria Digitata Extract, Potassium Sorbate, Carrageenan, Glucose, Phenoxyethanol, Sodium Dehydroacetate

    While Repêchage is committed to ensuring that the content on this website is accurate, all ingredient lists are subject to change from time to time. As such, we cannot and do not guarantee that these lists are free of errors, current or complete. Please refer to your product packaging for the most up-to-date ingredient list.

    Key Ingredients

    Laminaria digitata - Exclusive Seaweed Extract
    Natural source of 12 vitamins including B12, C, E, K and Beta Carotene, 18 amino acids, and 42 trace elements.

    This red algae contains a high molecular weight polysaccharide. Highly moisturizing and soothing.


    Use all over face, neck & decolletage twice daily alone or under Hydro-Complex PFS moisturizing cream.


    Why is C-Serum® so different from other serums?

    C-Serum® is an entirely different concept in skin fluid, containing a concentrated filtrate of Laminaria Digitata Seaweed extract created using sustainably-harvested, pure Seaweed harvested in Maine and then extracted by our exclusive process at the Repêchage ISO 9001:2015 certified manufacturing facilities in the U.S.A. It is meant to be either used alone or under other serums and moisturizers to create a nourishing layer of hydration, just as it is used in our award winning Four-Layer Facial®.

    How often can I use C-Serum®?

    You can use C-Serum® night and day alone or under a moisturizing cream.

    Where do I apply C-Serum®?

    This lightweight fluid can be used anywhere you need hydration—on face, neck, chest and decollette, even hands.