HYDRATING SERUM

The Hydrating Serum That Runs Cool

iS Clinical Hydra-Cool Serum is formulated to rejuvenate, hydrate and visibly soothe. Refreshing on contact and gentle enough for the most sensitive skin, it is the hydration layer every routine can carry.

Blue iS Clinical Hydra-Cool Serum bottle with silver pump floating in clear water

HYDRATION, HANDLED

What thirsty skin actually needs

Dehydrated skin does not need heavier cream; it needs water held in the right place. Hydra-Cool Serum delivers it with botanically sourced hyaluronic acid, one of nature’s most powerful hydrators, wrapped in superior antioxidants, essential botanicals and bionutrients. It is designed for all skin types and all ages, and it is gentle enough for even the most sensitive skin.

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  • Free delivery on orders over £100
  • The same product our clinical practitioners use

Suitable for

  • All skin types
  • All ages
  • Sensitive and reactive skin
  • Dehydrated skin
  • Skin using strong actives
Dropper with silver collar dispensing blue serum into clear dish on white background

HOW IT WORKS

Soothing is a skill

Refreshment here is not just a sensation. Centella asiatica, a powerful antioxidant with healing properties, calms the look of stressed skin; vitamin B supports cell metabolism and the appearance of healthy skin; mushroom-derived kojic acid assists in brightening the overall complexion; and hyaluronic acid supplies the water everything else works with. Rejuvenate, hydrate, soothe: the label is the mechanism.

KEY INGREDIENTS

The hydration four

Hyaluronic acid and three supporting botanicals, explained.

  • Centella Asiatica

    Centella Asiatica

    Powerful antioxidant with healing properties that helps diminish the appearance of premature aging.

  • Hyaluronic Acid

    Hyaluronic Acid

    One of nature's most powerful hydrators.

  • Polyporus Umbellatus (Mushroom)

    Polyporus Umbellatus (Mushroom)

    Extract (source of Kojic Acid) Natural antimicrobial that assists in brightening the overall complexion.

  • Vitamin B

    Vitamin B

    Essential nutrient for cell metabolism that promotes the look of healthy skin.

HOW TO USE

The flexible layer in any routine

1. Apply to clean skin, morning and evening.

2. Layer beneath your moisturiser, or beneath a treatment serum on days skin feels reactive.

3. Use generously wherever skin feels tight, warm or thirsty.

Blue glass bottle of iS Clinical Hydra-Cool Serum with white pump and silver collar on white background

Hydra-Cool Serum reviews

Hydration questions

What does Hydra-Cool Serum do?

Three things, by design: it rejuvenates, hydrates and visibly soothes. Botanically sourced hyaluronic acid supplies deep hydration while antioxidants and bionutrients calm and support the skin.

Is it a moisturiser?

No, it is the water layer that goes underneath one. Apply the serum first, then seal it with your usual moisturiser. Together they cover both hydration and moisture.

Can very sensitive skin use it?

Yes. It is designed for all skin types and ages, and it is specifically gentle enough for even the most sensitive skin, with calming centella asiatica in the formula.

Does it play well with acids and retinol?

Very well. On evenings you use stronger actives, Hydra-Cool is the soothing, hydrating counterweight, layered before your moisturiser to keep skin comfortable.

Why does it feel cooling on the skin?

The formula is deliberately refreshing on contact; the cool feel signals the lightweight, water-led texture rather than any harsh ingredient. It is part of why it suits warm days and post-active skin so well.

Which size makes sense, 15ml or 30ml?

Start with the 15ml at £64 if you are new to it. Daily users go through the 30ml at £99, which is the better value per millilitre.

Let your skin drink it in

Rejuvenating, soothing hydration for every skin type, every day.