Details: Yon-Ka Hydra N°1 (Hydra Number One) Serum is a quick-absorbing serum that provides long-lasting, intense hydration. This serum seeps deep into pores, rebuilding and increasing skin s density and fighting signs of aging. The gel texture comforts the irritation associated with very dry skin and restores skin to a softer, more supple state. Yon-Ka Hydra N°1 Serum envelops skin with long-lasting hydration to alleviate the negative effects of skin dehydration. Dry to very dry skin benefits from this formula that cools and comforts as it moisturizes. All skin types need hydration to stay healthy, so anyone looking for consistent moisture levels can use this product. It intensifies the effects of Hydra N°1 Crème and is great for mature skin. The skin is softer and suppler; its glow restored, it appears smoother and re-plumped.Your complexion will glow with health!KEY INGREDIENTS (95% natural ingredients):- Imperata cylindrica, polysaccharides rich in fructose, aloe vera, serine, sodium PCA, vegetable glycerin: instant and 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.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.