Hydrating Serum
Hydrating Serum
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COSMOS
The serum that does one thing - hydrate - and does it at every level of your skin.
Dehydrated skin isn't always dry skin. It's skin that has lost water content regardless of whether it's oily, combination, or dry on the surface. Fine lines appear deeper than they should. Texture looks rough. Tone looks dull. Products applied on top don't absorb properly because the skin beneath is starved of the water it needs to function.
The Hydrating Serum delivers multi-molecular-weight Hyaluronic Acid that works at three depths simultaneously surface, mid-layer, and deep dermis. Each molecular weight binds water at its specific level, creating a hydration system rather than a surface-level fix. Rose Flower Water and Aloe Vera soothe. Betaine locks moisture in. Cloudberry Extract provides antioxidant protection.
The texture is clean and weightless. No residue. No shine. Skin feels plumper, smoother, and properly hydrated from the moment it absorbs. Layer under moisturiser for deep hydration, under SPF for a minimal routine, or wear alone when you want results without weight.
How to Use
Daily — Morning & Evening
Cleanse with Daily Control Cleanser.
Dispense 3–4 drops onto fingertips while skin is still slightly damp — critical for maximum HA absorption.
Press gently across face and neck — do not rub. The serum absorbs in seconds.
Follow with Anti-Age Day Cream or Deep Hydration Cream to seal.
Finish with Active Shield SPF50 in the morning.
Why damp skin matters: Hyaluronic Acid draws moisture from wherever it can find it. On damp skin, it pulls that surface water inward. On dry skin, it can pull moisture from deeper layers — actually dehydrating you from within. Always apply to slightly damp skin after cleansing.
Key Ingredients
Multi-Molecular Hyaluronic Acid
Binds water at three skin depths simultaneously — surface, mid-layer, and deep dermis. Sustained, structural hydration rather than a temporary surface film.
Rosa Damascena Flower Water
Tones and soothes with a natural anti-inflammatory effect. Calms post-shave redness while enhancing hydration absorption.
Betaine
Natural amino acid derived from sugar beet. Protects against transepidermal water loss — locking the Hyaluronic Acid's moisture inside the skin for hours.
Cloudberry Extract
Arctic superfruit packed with Vitamin C and antioxidants. Protects freshly hydrated skin from environmental free radicals while supporting natural radiance.
Full Ingredient List — INCI
Aloe Barbadensis (Aloe) Leaf Juice*, Simmondsia Chinensis (Jojoba) Seed Oil*, Glycerin**, Pentylene Glycol, Rosa Damascena (Rose) Flower Water*, Polyglyceryl-6 Stearate, Cetearyl Alcohol, Isoamyl Laurate, Aqua, Betaine, Polyglyceryl-6 Behenate, Parfum, Cellulose, Caprylic/Capric Triglyceride, Xanthan Gum, Bisabolol, Paeonia Lactiflora (Peony) Root Extract, Rubus Chamaemorus (Cloudberry) Fruit Extract*, Ascorbyl Palmitate, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Sodium Phytate, Tocopherol, Benzyl Alcohol, Alteromonas Ferment Extract, Phenethyl Alcohol, CI 77491 (Iron Oxides)****, Sodium Benzoate, Potassium Sorbate, Potassium Hydroxide, Glycolipids, Limonene***, Geraniol***, Coumarin***, Linalool***.
*From organic farming · **Made using organic ingredients · ***From natural essential oils · ****Pure mineral pigments · Vegan · COSMOS NATURAL certified by ECOCERT Greenlife
Questions
How is this different from the Double Hydration Boost Gel?
The Double Hydration Boost Gel + HA is a gel-textured hydrator with HA and Sodium PCA it hydrates and seals in one step. This Hydrating Serum is a pure hydration concentrate with a richer botanical profile: Rose Water, Cloudberry, Peony, and Alteromonas ferment. Use this as a treatment layer under your moisturiser for maximum depth. Use the gel as a standalone lightweight hydrator.
Can I use this instead of a moisturiser?
On warmer days or for oily skin types, yes the serum provides sufficient hydration on its own. For dry or dehydrated skin, or in cold weather, layer a moisturiser on top to seal the HA's hydration in place. Without a sealant, some moisture can evaporate.
Can I use this with the Peptide Serum?
Yes apply this Hydrating Serum first as the hydration layer, let it absorb for 30 seconds, then apply the Peptide Anti-Aging Serum on top as the treatment layer. Hydrated skin absorbs the peptides more effectively. Follow with moisturiser to seal both.
How long does one bottle last?
At 3–4 drops per use, twice daily, a 30ml bottle lasts approximately 6–8 weeks. Read more about how Hyaluronic Acid works for men's skin in The Lab.
Hydration at Every Depth. Weight at None.
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