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Hydra No. 1 Serum
    Purchase Hydra No. 1 Serum
    • Hydra No. 1 Serum

      Hydrating Hyaluronic Acid Serum

      Read 28 reviews

      $98.00 Free Shipping

      Deeply hydrate and comfort dry, dehydrated skin.
      Our intensely hydrating serum is enriched with hyaluronic acid to deeply hydrate dry, dehydrated skin. Composed of 93% ingredients of natural origin, this ultra lightweight, refreshing gel-serum delivers lasting hydration and antioxidant protection to help prevent visible signs of aging. Enriched with micro-molecular hyaluronic acid, imperata cylindrica grass, and humectant aloe vera, our dehydration remedy veils and comforts skin, leaving the complexion with a supremely healthy radiance.
      • Ultra lightweight, silky gel-serum is instantly absorbed by skin for healthy, lasting hydration.
      • Composed of 93% natural ingredients to deeply hydrate dry, dehydrated skin.
      • Antioxidant botanical complex helps prevent skin damage and signs of aging resulting from dehydration.
      • Double concentration of hyaluronic acid in comparison to Hydra N°1 Crème.
      • Intensifies the effects of Hydra N°1 Crème.

      SKU: 34070
    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 93% Natural Ingredients
    Key ingredients: 30 ml.
    93% 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.


    Kim Phillips
    Verified Buyer
    Great daytime serum
    I’ve been using this serum for about a year now and love the way it leaves my skin hydrated and glowing. A must have!
    Verified Buyer
    Just ok
    It feels nice going on. I wear it without makeup but for the price I'm just not sure I see a big difference, although I have only been using it recently.
    Jessica Unzueta
    Verified Buyer
    My skin loves this
    I have been using the Hydra 1 Serum with my Hydra 1 Creme for the past year and my skin absolutely loves it. Bye bye to dry skin!
    Christine Herring
    Verified Buyer
    I have been using this product along with Hydra No 1 Cream. Excellent combination.
    Tatiana Turcanu
    Verified Buyer
    Love it!
    I have very dry skin and this is the serum i have been looking for.Thank you YonKa .
    Verified Buyer
    My skin loves it
    I use the Hydra 1 serum right after spraying Yon-ka Toner PS on my face (it's best to apply hyaluronic acid and moisturizer to damp skin so that the hydrating water molecules get trapped in the skin). It's a lovely, light texture and primes my skin so well for the rest of my beauty routine. I keep mine in a mini-fridge for a cooling effect.
    Verified Buyer
    I love this stuff
    I am new to Yon-ka products and loving everything I’ve tried so far but this is my favorite…definitely won’t be without this serum moving forward…it is so nourishing and moisturizing without being heavy or greasy…my skin drinks it right up…I have been searching for years for a skin care line that doesn’t freak out my super sensitive skin…I have finally found it ❤️
    Pamela Cohen
    Verified Buyer
    I have been using Hydra N 1 serum for close to a year now could never be without it!! The product penetrates first on the top layer of skin and secondly it goes into the second layer of skin, remarkable, it moisturizes my skin better than any product I’ve ever used!!
    Christine Herring
    Verified Buyer
    Hydra Serum
    Love The Hydra serum I have been using it for 5 years, along with the Hydra Cream
    Lynn Anne Miller
    Verified Buyer
    hydra no. 1 serum
    This is the first serum I have tried and use it along with the Hydra No. 1 Creme that I received as your offered gift with purchase. I can definitely see the moisturizing affect it has on my skin. I love the way my skin feels after applying the serum.
    Verified Buyer
    My new favorite
    I am obsessed with this serum! It smells incredible, goes on so smoothly, and makes my skin feel super hydrated and glowing. It also stops my skin from just sucking in all my face cream. My skin is normally so dry in the Minnesota winter, but I haven’t had that problem at all this year. I know this sounds like a paid post, but I am actually serious about my love for this product!
    Jennifer Pratt
    Verified Buyer
    Great Hydration
    This has given my skin more hydration. It has a smooth finish and does a great job. During the winter, I have drier skin and this is so helpful to avoid that.
    Verified Buyer
    Favorite serum!
    I have used this serum for over six years now and it is my absolute favorite. It is extremely hydrating but immediately penetrates into the skin and doesn't leave it sticky. I am in my late twenties and this has been my go-to whether my skin was oily, acne prone, or normal. Nothing compares!
    Teryll Sacks
    Verified Buyer
    Hydration Galore!
    Heading into winter, I was in need of some more hydration and this serum along with the Phyto 58 creme is proving to be a great combination for my oily/sensitive skin! A little goes a LONG way and I love how my skin feels after using this product.
    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
    Hydrating Hyaluronic Acid Serum