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Hydra No. 1 Serum
    Purchase Hydra No. 1 Serum
    In the morning and/or evening, after cleansing and spraying on Lotion Yon-Ka, apply the serum (pump 2 or 3 times) to the face and neck, then Hydra N°1 Crème for dry or sensitive skin or Hydra N°1 Fluide for normal to oily skin. In addition, use Masque N°1 once or twice a week.

    How does a serum work?
    Water-based serums are created to deeply penetrate the skin and provide maxium benefits. Hydra N 1 Serum is intensely hydrating.

    When to use a serum?
    Cleanse and tone, apply Hydra N 1 Serum first, then moisturizer over top. For best results, use with Hydra N 1 Crème or Fluide.

    Why should I use a serum?
    Serums are high performing and provide maximum benefits for the skin.
    30 ml 95% Natural Ingredients
    Key ingredients: 30 ml.
    95% natural ingredients
    • Imperata cylindrica, polysaccharides rich in fructose, aloe vera, serine, sodium PCA, vegetable glycerin: instant & long-lasting hydration
    • Olive phytosqualane: anti-dehydration
    • Yeast extract, hyaluronic acid, silicon: restructuring - redensifying action
    • Vitamins E, C, A: anti-oxidant - regenerating
    • Essential oils of rose, chamomile and jasmine: balancing and relaxing phyto-aromatic effects.
    Other ingredients: Water, Squalane, Polyglyceryl-3 Methylglucose Distearate, Imperata Cylindrica (Red Baron) Root Extract, Glycerin, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Pca, Dimethicone, Serine, Aloe Barbadensis Leaf Juice, Tocopheryl Acetate (Vit. E: 0.2%), Ascorbyl Tetraisopalmitate (Vit. C), Pichia Anomala Extract, Retinyl Palmitate (Vit. A), Biosaccharide Gum-1, Hyaluronic Acid, Jasminum Sambac (Jasmine) Oil, Rosa Damascena (Rose) Flower Oil, Anthemis Nobilis (Chamomille) Flower Oil, Silanetriol, Sorbic Acid, Citric Acid, Polysorbate 80, Carbomer, Caprylyl Glycol, Isohexadecane, Ethylhexylglycerin, Phenoxyethanol, Fragrance/Parfum, Chlorphenesin, Butylene Gyclol, Linalool *, Geraniol *, Citronellol *
    *Natural Components of Essential Oils
    *Ingredients may be subject to change. The most accurate and up to date product ingredient list can also found on the product packaging.


    Pamela Cohen
    Verified Buyer
    Hydrating serum number one
    This serum was recommended to me by the woman who has been giving me massages and facials for years she told me it would get beyond the first layer of skin to the second layer and reduce the dryness that I couldn’t seem to get rid of, and she was right it works beautiful my skin has never looked so good!!
    Hydra serum
    This serum absorbs into my skin and has helped with my dryness.. Will definitely purchase again.
    Hands down, I love this product. It feels light and smells delicious. It is so fun to see my skin transform!
    Very moisturizing
    This is very moisturizing- I use this is the spring months!
    Monica Ryan
    Very nice!
    This serum is light and absorbent. It's been great for using during the winter months, my skin feels great! Thank you.
    Brenda Marks
    Verified Buyer
    Best of all the rest
    I have used YonKa products since I discovered them on a trip to Paris in 1998. What I love most is they can be trusted. The ingredients meet all EC requirements (US manufactured products don't have these protections) and are natural and non-reactive. All that said, I live in dry air above 5,000. Hydra No. 1 is my year-round go-to moisturizing base to keep my face and neck supple and hydrated. I love the way it feels, how it goes onto my skin and doesn't disappear, yet is light as air. Perfect base for Elastine Jour or any other moisturizer. I'm 62 but many tell me I look over 10 years younger. It's not me, it's my skincare products. Thank you YonKa!
    Verified Buyer
    love it!
    this is exactly the serum i have been looking for. the smell is so relaxing, it really helps after the lotion.
    Anita Slicton
    Verified Buyer
    hydra 1 lotion
    goes on smoothly with a wonderful soothing feeling
    Sybil Ackerman
    Verified Buyer
    Wonderful product
    I use the Serum daily and it really works. I have very dry skin and It makes my skin feel hydrated. I recommend all Yonka products.
    Verified Buyer
    Loved the serum! Light and airy on the skin!
    very good product...would recommend
    my favorite hydration serum
    I love the way it makes my face feel so smooth and totally minimizes the small lines on my upper lip. I also use it to help the tiny wrinkles near my eyes when I smile. I love the way it goes on and it has made me feel good about how I look.
    Extremely refreshing! I love using it with Hydra N1 Creme
    Super Refreshing!
    Love this product! It's saved my skin so many times.

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    Hydra No. 1 Serum
    Hydra No. 1 Serum
    Intense, Long-Lasting Hydration Serum