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Genex C Serum
Genex C Serum — 2
Genex C Serum — 3
Genex C Serum — 4
iS Clinical

Genex C Serum

20% vitamin C for radiant skin

Choose your size
€135.00

VAT included

In stock

Free shipping from €100 · Free pickup at the centre (Diagonal 369)

iS Clinical's most concentrated vitamin C serum (20% L-ascorbic acid) with Extremozymes and fruit acids. Light, firmness and protection. 15 ml size.

  • Visible radiance within a few weeks
  • High-level antioxidant protection
  • More even tone and finer texture
  • Genuine productAuthorised distributor of every brand in Spain
  • Delivery in 24–48 hMainland Spain, 1–2 working days · free from €100
  • 14-day returnsUnopened, seal intact
  • Free pickup at the centreAvenida Diagonal 369 · Monday to Saturday
  • Secure paymentEncrypted and verified by Revolut
  • Visa
  • Mastercard
  • Apple Pay
  • Google Pay
  • Revolut Pay

Questions about this product?

One of our aestheticians replies during centre hours.

Ask on WhatsApp

About the product

GeneXC Serum is iS Clinical's most powerful antioxidant serum. It brings together 20% vitamin C (L-ascorbic acid) with the brand's Extremozyme technology, botanical enzymes and fruit acids sourced from land and sea. Together they protect skin from daily stress, add light and support firmness over the long term.

It has a fluid texture and a characteristic amber colour; on application you feel a gentle tingle that passes within a minute. Skin is left smooth with a fresh finish, and within a few weeks tone looks more even and radiant. It is a morning serum by nature, under sunscreen.

This 15 ml size is a good way in.

What it does

  • Visible radiance within a few weeks
  • High-level antioxidant protection
  • More even tone and finer texture
  • Supports firmness with continued use

How to use

  1. In the morning on clean dry skin, a few drops over face and neck before your cream and sunscreen.
  2. It can also be used in the evening.

Key actives

  • 20% vitamin C (L-ascorbic acid)radiance and antioxidant protection
  • Extremozymesbotanical complex that helps protect and revitalise
  • Botanical enzymes and fruit acidsgentle surface renewal

Suitable for

Mature skinCombination skinAll skin types

Works on

Loss of radiancePigmentationWrinkles and firmness

Ref. JADE-22379244

Customer reviews

No reviews for this product yet.

We only publish reviews from verified purchases: every customer gets a link to rate their products a few days after delivery.

Meanwhile, the centre holds 4.9 out of 5 on Google across 398 reviews.

Frequently asked questions

Is this a genuine product?

Yes. Everything in the shop comes from the official iS Clinical distributor in Spain — the same stock our aestheticians use in the treatment room at Avenida Diagonal 369.

When will it arrive?

We ship within 24 hours on working days and delivery takes 1–2 working days in mainland Spain. Shipping is free from €100; below that it's €4.90. You can also collect it for free at the centre.

Can I return it?

Yes, within 14 days of delivery as long as the product is unopened and the seal is intact. For hygiene reasons opened cosmetics can't be returned, unless they arrived damaged or wrong — then we sort it out at our cost.

Is it right for my skin?

Not sure? Write to us on WhatsApp with a photo of what you're using now and one of our aestheticians will tell you whether this product fits your routine — or what to use instead.

How do I pay?

By card (Visa, Mastercard), Apple Pay, Google Pay or Revolut Pay. Payment is processed by Revolut with full encryption; we never see your card details.

Suggested full routine

Three steps that work together, chosen by our aestheticians within the same brand whenever possible. If your skin is particular, ask us first.

  1. 1Cleansing Complex

    Cleanse

    Cleansing Complex180 ml

    Clean skin so the rest absorbs properly

    €58.00
  2. 2Genex C Serum

    Treat

    Genex C Serum15 ml

    this product

    €135.00
  3. 3Extreme Protect SPF 30

    Protect

    Extreme Protect SPF 30100 g

    SPF every morning, always

    €108.00
3 products · €301.00
Prefer a routine built for your skin? Take the test →
Treatments at our centre

We use it in cabin for

This brand is part of our protocols. If you visit the centre you can try it before buying.

See all treatments →
Professional skincare · our Barcelona centre

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