Hydra no 1 serum
"I love this serum. The smell is fabulous and it hydrates your skin beautifully. I generally use it once or twice a day"
Hydra N°1 Serum
Hydrating Hyaluronic Acid Serum
$115.00
Free Shipping + Free Trial Kit at Checkout
Free Shipping at Checkout
New to Yon-Ka? Take 10% Off Your First Order
Frequency:
How subscriptions work
No commitment - cancel or change anytime! Get 15% off first order, 10% off recurring orders + free shipping. Subscriptions don't qualify for daily gifts.
FREE 2-DAY SHIPPING ON ORDERS $45+
CUSTOMER SERVICE (800) 391 5333
FREE TRIAL SIZE KIT ON ORDERS $75+
FREE FULL SIZE PRODUCT ON ORDERS $185+
See it in action
Application
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.
Description
Deeply hydrate and comfort dry, dehydrated skin.
Our intensely hydrating serum is enriched with a double dose of hyaluronic acid to deeply hydrate dry, dehydrated skin. Hydra No 1 Serum is an ultra lightweight, refreshing gel-serum that 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.
30 ml.
SKU: 34070
Ingredients
Key ingredients:
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.
• 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.
INCI List
INGREDIENTS : AQUA/WATER/EAU, SQUALANE, POLYGLYCERYL-3 METHYLGLUCOSE DISTEARATE, IMPERATA CYLINDRICA ROOT EXTRACT, GLYCERIN, SODIUM ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, DIMETHICONE, SODIUM PCA, HYALURONIC ACID, PHENOXYETHANOL, ISOHEXADECANE, SERINE, PARFUM/FRAGRANCE, CHLORPHENESIN, TOCOPHERYL ACETATE, POLYSORBATE 80, BUTYLENE GLYCOL, ALOE BARBADENSIS LEAF JUICE POWDER, ASCORBYL TETRAISOPALMITATE, PICHIA ANOMALA EXTRACT, RETINYL PALMITATE, BIOSACCHARIDE GUM-1, CAPRYLYL GLYCOL, CARBOMER, ANTHEMIS NOBILIS FLOWER OIL, JASMINUM SAMBAC (JASMINE) FLOWER EXTRACT, ROSA DAMASCENA FLOWER OIL, SILANETRIOL, CITRIC ACID, ETHYLHEXYLGLYCERIN, SORBIC ACID, ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER, TOCOPHEROL, LINALOOL, GERANIOL, CITRONELLOL, D'ORIGINE NATURELLE/OF NATURAL ORIGIN
Complete Your Routine
Online Shop Advantages
FREE 2-DAY SHIPPING ON ORDERS $45+
FREE TRIAL SIZE KIT ON ORDERS $75+
EXCLUSIVE REWARDS & GIFTS
GIFT WITH PURCHASE ON QUALIFYING ORDERS
CUSTOMER SERVICE (800) 391 5333
Overall rating: 5.0 / 5 from 55 reviews.
AI Generated Review Summary
Hydra N°1 Serum deeply hydrates and comforts dry, dehydrated skin. Customers highlight its wonderful feel and superior moisturizing effect. Enriched with hyaluronic acid and aloe vera, it provides lasting hydration and antioxidant protection.
Summary topics
- Feels: 10%
- Skin Moisturization: 32%
Review topics: ["smell","feels","skin","serum","hydration","combination","yonka"].
Review highlights
- "It's been great for using during the winter months, my skin feels great!" —
- "I have very dry skin and It makes my skin feel hydrated." —
- "The smell is fabulous and it hydrates your skin beautifully." —
Reviews
THIS! THIS product will solve
"THIS! THIS product will solve the problems you are having with your skin. My skin was red and bumpy and needed to be tamed. The results speak for themselves."
Luxurious feeling Serum
"I like the light, non sticky feeling of this serum. It goes well with the Hydra N 1 lotion. I am on my first bottle of the serum (and using it together with the lotion) So far I have not noticed a plumping of a deep wrinkle around my mouth but I will wait until the bottle is finished to decide if it’s worth a second bottle."
Hydra N1 Serum
"The Hydra N1 Serum has been a fabulous addition to my daily routine."
Hydra 1 serum
"This serum is so hydrating and I’m so happy I bought it. I noticed a difference in my skin almost as soon as I started using it. I will definitely buy it again."
Skin Transformation
"The Hydra Serum is an elixir for dryness. The feel of my skin in the morning & evening after applying just a small amount gives my face & neck a look & feeling of transformation."
Love this serum'
"It's a nice light serum that delivers wonderful moisturizing results. I love applying this serum under my yon-ka creams and masks (day and night) during winter, and on its own (during the day) in the summer time. Great product."
delightful serum
"I use Hydra No 1 Serum and it is number 1. - It moisterizes deeply and I use it before a Yonka day creme, such as Time Resist. Thank you Yonka. You provide hope."
Yonka serum
"Wonderful"
Hydrating with results after 4 weeks
"Nourishing to the skin. Age over 70 and my skin looks radiant after 4 or 5 weeks noticeably improved. I will order again very satisfied with product"
Q&A
Frequently Asked Questions
Is Hydra N°1 Serum good for dry, dehydrated skin?
Yes. Hydra N°1 Serum is formulated specifically for dry, dehydrated skin and delivers targeted hydration. It contains a double dose of hyaluronic acid, including micro-molecular weight hyaluronic acid, which attracts and binds moisture at multiple skin layers; imperata cylindrica grass, a natural humectant that helps retain water; and soothing aloe vera to comfort and calm tightness. The product’s ultra lightweight gel-serum texture allows rapid absorption so skin feels hydrated without heaviness. This makes it particularly beneficial for people with chronically dehydrated skin, dry climates, or those experiencing temporary moisture loss from travel or seasonal changes. Since it is designed to restore hydration rather than control excess oil, those with oily, acne-prone skin may prefer lighter water-based hydrators or targeted mattifying treatments.
How do I use Hydra N°1 Serum in my daily skincare routine?
Use Hydra N°1 Serum as your step dedicated to intensive hydration. Use by applying after cleansing, after any lightweight water-based treatments, and before your moisturizer. The lightweight gel-serum texture spreads easily and penetrates quickly, allowing the double dose of hyaluronic acid and aloe vera to draw moisture into the skin and the botanical complex to provide antioxidant protection. Applying it on slightly damp skin enhances its humectant action. This routine benefits those with dry or dehydrated skin seeking to boost moisture throughout the day and improve the effectiveness of subsequent creams. If you use potent actives, introduce the serum gradually and consult product instructions or a skincare professional to sequence active ingredients safely.
Can I layer Hydra N°1 Serum under makeup?
Yes. Hydra N°1 Serum layers well under makeup because its ultra lightweight, refreshing gel-serum texture absorbs quickly and creates a hydrated base that helps makeup apply more smoothly. The serum’s micro-molecular hyaluronic acid boosts skin moisture without leaving a sticky residue, while aloe vera and imperata cylindrica grass help maintain comfort and a radiant finish. This makes it ideal for mornings when you want a dewy, long-lasting base before primer and foundation. For best results, allow the serum to absorb fully for a minute, then follow with your moisturizer or primer as needed. Those seeking a matte finish should follow with a mattifying primer or powder, as the serum focuses on hydration rather than oil control.
How often should I apply Hydra N°1 Serum and how much should I use?
Apply Hydra N°1 Serum twice daily, morning and evening, for consistent hydration and antioxidant support. Its lightweight gel-serum formulation is concentrated, so a small amount spread evenly over the face and neck is sufficient to deliver the double dose of hyaluronic acid and botanical humectants. Using it consistently helps maintain skin’s moisture balance and supports a healthier-looking complexion over time. This regimen is best suited to dry, dehydrated, or mature skin that needs continual replenishment. If you are layering multiple treatments, apply the serum after cleansers and toners but before heavier creams. Adjust frequency if your skin becomes sensitized and consult a skincare professional for personalized guidance.
Will Hydra N°1 Serum help reduce the appearance of fine lines caused by dehydration?
Yes. Hydra N°1 Serum can help reduce the appearance of fine lines that are related to dehydration by restoring water content and plumping the skin. The formula’s double dose of hyaluronic acid, including micro-molecular weight hyaluronic acid, attracts and retains moisture at varying skin depths to smooth the look of surface lines, while aloe vera and imperata cylindrica grass help maintain hydration and comfort. Regular hydration helps make expression lines and texture appear less pronounced, particularly for those whose fine lines stem primarily from moisture loss rather than structural aging. For more advanced structural wrinkles, combine sustained hydration with targeted anti-aging treatments as advised by a skincare professional.
Is Hydra N°1 Serum suitable for sensitive skin?
Hydra N°1 Serum is formulated to comfort dry, dehydrated skin with humectants like micro-molecular hyaluronic acid, imperata cylindrica grass, and soothing aloe vera, which help restore moisture and reduce tightness. These features can decrease the sting and tight sensations that accompany sensitivity caused by dryness. Hydra N°1 Serum can be suitable for many people with sensitive skin, but it depends on individual sensitivities. Since the formula includes botanical extracts and essential oil-derived aromatics those with known sensitivities to botanicals should perform a patch test or consult a dermatologist before full-face use. If irritation occurs, discontinue use and seek professional advice.
Can I use Hydra N°1 Serum alongside retinol or other active treatments?
Yes. Hydra N°1 Serum pairs well with retinol and many other active treatments because its primary role is to replenish moisture and support barrier comfort. The serum’s hyaluronic acid complex and humectant botanicals help hydrate the skin, which can reduce dryness and irritation sometimes associated with retinoids and exfoliating actives. Apply the serum after cleansing and any water-based actives, then follow with moisturizers or occlusives to lock in hydration. Introduce combinations gradually and monitor your skin’s response. If you are using particularly strong or prescription-strength actives, consult a dermatologist for personalized layering guidance to avoid irritation.
How quickly will I notice hydration results from Hydra N°1 Serum?
You may notice immediate skin comfort and a plumper, more hydrated feel after the first application because the gel-serum texture absorbs rapidly and its hyaluronic acid draws moisture into the skin. With consistent morning and evening use, many people experience more sustained improvement in skin smoothness, elasticity, and radiance over the course of several weeks as the skin’s hydration balance is restored. The combination of micro-molecular hyaluronic acid, imperata cylindrica grass, and aloe vera supports both short-term relief and longer-term moisture retention. Individual timelines vary depending on starting skin condition, environment, and complementary skincare practices.
Is Hydra N°1 Serum safe to use during pregnancy or breastfeeding?
This product contains botanical extracts and aromatherapeutic elements, so a definitive recommendation depends on individual circumstances. Because some essential oils and certain botanical ingredients can be restricted during pregnancy and breastfeeding, consult your healthcare provider or obstetrician before introducing Hydra N°1 Serum into your routine. The serum’s hydrating actives, such as micro-molecular hyaluronic acid and aloe vera, are generally well tolerated, but it is prudent to confirm safety of the full formulation during pregnancy. If advised by your clinician, perform a patch test and monitor for sensitivity when resuming any new skincare product.
How should I store Hydra N°1 Serum and maintain its effectiveness?
Store Hydra N°1 Serum in a cool, dry place away from direct sunlight and extreme temperatures to preserve the integrity of its hyaluronic acid complex and botanical extracts. Keep the cap tightly closed between uses to minimize exposure to air and contaminants, which helps sustain antioxidant protection and fragrance stability. For best results, follow any shelf-life or period-after-opening information printed on the packaging. Proper storage benefits users who want consistent hydration and the sensorial qualities of the formulation; avoid storing it in very hot, humid environments such as a shower to prevent accelerated degradation.
