iS Clinical: A Beginner's Guide to the Range Reviews
27 product reviews
iS Clinical is a US physician-grade cosmeceutical brand originally formulated for post-procedure and clinical skin recovery, sold in the UK through professional stockists including Skintique. It's built on Extremozyme®, the brand's proprietary botanical-enzyme technology, with a near-uniform approach across the range: high-percentage, time-released actives in pharmaceutical-grade botanical formulations.
That suits committed actives-users and anyone with compromised, post-procedure or sensitised skin wanting a clinically-oriented range, rather than someone after a small, simple, budget shelf — 41 SKUs is a lot to navigate, and the real buying barrier is usually working out which serum does a different job to which, not whether the brand itself is any good.
This guide sorts the full range by step — cleanse, treat, protect — rather than brand history, and links to a full review of each product. Nothing here replaces a dermatologist or aesthetician consultation: pregnancy, active skin conditions and anything retinoid-containing should always be discussed with a clinician first.
iS Clinical at Skintique, at a glance
| Core technology | Extremozyme® botanical-enzyme complex, plus high-percentage time-released actives — a brand-level approach, not a claim specific to one product |
|---|---|
| Range size | 41 active SKUs, all confirmed live on the UK store |
| Formats | Cleansers, treatment serums, mineral/hybrid sunscreens, eye treatments, moisturisers and body care |
| Price | Not MAP-restricted, but prices move — check the individual product page for the current figure |
| This guide covers | 2 in-depth reviews, 25 shorter reviews, 4 concern guides and 3 comparisons, plus a note on kits and lip care folded in rather than reviewed individually |
How this guide is organised
Rather than working through 41 products alphabetically, we've grouped the range by where each sits in a routine: cleanse, then treat, then protect, with eye care and moisturisers/body care as their own sections. Read the group that matches where you're starting, or use the concern guides below if you already know what you're solving for.
Step 1: Cleanse
Four cleansers cover most of what you'd want from a first step, from a daily all-skin-types gel through to a weekly treatment mask.
| Product | Best for |
|---|---|
| Cleansing Complex | Daily gel cleanser for all skin types, doubles as a 10–15 minute masque — the obvious starting point |
| Cream Cleanser | Non-foaming, wipe-off option for dry, sensitive or post-procedure skin |
| Warming Honey Cleanser | Weekly treatment cleanser on real honey — not suitable for bee-product allergies |
| Cleansing Complex Polish | Exfoliating sibling to Cleansing Complex, with added salicylic acid and polishing particles |
Step 2: Treat — Vitamin C & Treatment Serums
This is the biggest group in the range, and worth reading carefully first: Active Serum is not part of the vitamin C line-up. It's a resurfacing treatment built on willow bark, sugarcane and arbutin extracts, used two to three times a week in the evening. If you want vitamin C, look at Super Serum Advance+, Pro-Heal Serum Advance+, GeneXC Serum or Poly-Vitamin Serum instead — each built on a different combination of actives.
| Product | Best for |
|---|---|
| Active Serum | The original resurfacing serum — for established actives-users, not first-timers |
| Super Serum Advance+ | Flagship 15% vitamin C and copper peptide combination — needs refrigeration |
| Pro-Heal Serum Advance+ | Fragrance-free vitamin C and retinol, with the clearest brand-stated pregnancy caution |
| GeneXC Serum | The newest vitamin C formula, built on the brand's Extremozyme® blend |
| Poly-Vitamin Serum | Gentler niacinamide-led option for those who can't tolerate a daily active serum |
| Hydra-Cool Serum | Cooling, soothing hyaluronic acid serum, not an active treatment step |
| Youth Complex | Fast-acting plumping cream for dry, dehydrated or mature skin |
| Youth Serum | Concentrated gel with an instant tightening feel — apply sparingly |
| Brightening Serum | Hydroquinone-free serum for hyperpigmentation, built on alpha-arbutin |
| Brightening Complex | AM brightening cream that pairs with Brightening Serum — the clearest pregnancy caution in the range |
Step 3: Protect — Sunscreens
Four sunscreens, and one useful factual split worth knowing first: Extreme Protect SPF 40 and Eclipse SPF 50+ are 100% mineral (zinc oxide and titanium dioxide only), while Extreme Protect SPF 30 also contains a chemical filter, octinoxate. If you're avoiding chemical filters, that's the difference that matters, not the SPF number.
| Product | Best for |
|---|---|
| Extreme Protect SPF 40 | All-mineral, fragrance-free daily SPF, including post-procedure skin |
| Extreme Protect SPF 30 | Lighter hybrid mineral/chemical formula for those not avoiding chemical filters |
| Eclipse SPF 50+ | Highest-SPF, matte, oil-free mineral option — good for oily or combination skin |
| Liprotect SPF 35 | Dedicated all-mineral lip SPF with a light cherry flavour |
Eye Care
Two eye treatments built on genuinely different actives, not near-duplicates of each other.
| Product | Best for |
|---|---|
| C Eye Serum Advance+ | Eye-safe, lower-strength version of Super Serum Advance+'s vitamin C and copper peptide combination |
| Youth Eye Complex | Peptide and retinyl palmitate eye treatment — the listing states daily SPF is essential alongside it |
Moisturisers & Body
Seven products, from a lightweight everyday moisturiser to a neck-specific firming cream and a post-procedure balm.
| Product | Best for |
|---|---|
| Moisturizing Complex | Daily gel-cream on 10% hyaluronic acid, suitable for all skin types |
| Youth Intensive Creme | The richest moisturiser in the range, best introduced gradually as a PM step |
| Reparative Moisture Emulsion | Lightweight fluid moisturiser that doubles as a makeup primer |
| Daily Dynamic Hydrator | Newest moisturiser, combining hyaluronic acid, dual vitamin C forms and copper peptides |
| Body Complex | Fast-absorbing antioxidant body lotion for dry or rough body skin |
| Sheald Recovery Balm | Fragrance-free balm the brand calls its only product suitable for open wounds — use as directed by your practitioner |
| Neckperfect Complex | Dedicated neck and décolletage firming cream, formulated separately from the facial range |
Shop iS Clinical by concern
If you'd rather start from a skin concern than a product name, these guides pull together the strongest options from across the range for that specific job. If you're looking for a vitamin C serum generally, rather than specifically within the iS Clinical range, our guide to the best vitamin C serums in the UK covers the wider market.
- Best iS Clinical serums for anti-ageing
- Best iS Clinical products for hyperpigmentation and uneven tone
- Best iS Clinical sunscreens
- Best iS Clinical products for sensitive and post-procedure skin
Head-to-head comparisons
- Active Serum vs Pro-Heal Serum Advance+ — a resurfacing treatment against a vitamin C and retinol serum, set side by side on actives, frequency and pregnancy guidance.
- Super Serum Advance+ vs GeneXC Serum — the range's two flagship vitamin C formulas compared on storage, technology and texture.
- iS Clinical vs SkinCeuticals: how the vitamin C serums compare — two physician-dispensed cosmeceutical ranges Skintique stocks, compared without naming a price.
Kits, sets and lip care
iS Clinical also sells seven pre-built kits — among them the Pure Renewal Collection — that bundle together products already covered above, plus a small lip care line (Liprotect SPF 35, reviewed as a sunscreen above, alongside a lip polish, lip duo and lip elixir). We haven't written a standalone review for every kit or lip product, since a kit's "review" is really the reviews of what's inside it. Read the individual product reviews for what's in the box, or shop the Pure Renewal Collection directly, and get in touch with our team if you'd like help choosing between a kit and the pieces separately.
A note on pregnancy and breastfeeding
Several iS Clinical product listings on this store carry a "Pregnancy Safe" tag, and several products contain retinyl palmitate, a vitamin A derivative, without any accompanying pregnancy guidance on the listing. We don't rely on that tag anywhere in this guide or in the individual reviews, whatever the listing says. If you're pregnant or breastfeeding, please contact our team for advice before use.
Our approach
Every fact here traces back to this store's own live product data — ingredients lists, suitability tags and directions — not repeated marketing copy. Where the brand cites its own testing, we attribute it as the brand's own results, not independently verified, and we've kept specific percentage figures out of this overview; they appear, sourced, in the individual reviews. We don't run star ratings or aggregate review scores on any of these pages. A handful of products — Sheald Recovery Balm's open-wound positioning, Daily Dynamic Hydrator's listing content, and some pregnancy-labelling inconsistencies — are flagged for our clinical and product teams before those pages go live; where a fact wasn't confirmable, we've said so rather than guessed.
Product Reviews
iS Clinical Active Serum Review
iS Clinical's original multi-acid resurfacing serum — glycolic, lactic and salicylic acid with arbutin and kojic acid, used 2-3 evenings a week to help improve texture, congestion and uneven tone.
£88.00
iS Clinical Body Complex Review
A closer look at iS Clinical's treatment-style body lotion for dry, rough and compromised skin — including how it's positioned around retinyl palmitate, gentle exfoliation, and the brand's own psoriasis and eczema-suitability claims.
£75.00
iS Clinical Brightening Complex Review
A richer, medium-viscosity AM cream built on Tetrahexyldecyl Ascorbate, Alpha-Arbutin and Norwegian Kelp Extract, positioned as the concentrated half of iS Clinical's brightening pair and designed to sit alongside daily SPF rather than replace it.
£151.00
iS Clinical Brightening Serum Review
A hydroquinone-free treatment serum built on Alpha-Arbutin, Norwegian Kelp Extract and botanical AHAs, positioned as the lighter half of iS Clinical's brightening pair and designed to sit alongside daily SPF rather than replace it.
£83.00
iS Clinical C Eye Serum Advance+ Review
A 7.5% time-released Vitamin C and Copper Tripeptide-1 eye serum, ophthalmologically tested and built specifically for the delicate under-eye area rather than the whole face.
£68.00
iS Clinical Cleansing Complex Polish Review
The exfoliating sibling to iS Clinical Cleansing Complex, built on biodegradable polishing particles and salicylic acid — with two formulation flags the plain version doesn't carry.
£48.00
iS Clinical Cleansing Complex Review
A pH-balanced 3-in-1 gel cleanser from iS Clinical, built on willow bark, sugarcane and centella asiatica extracts. Here's what's actually in it, how it feels, and who it's for.
£25.00
iS Clinical Cream Cleanser Review
A non-foaming, wipe-off cream cleanser built on safflower seed oil, coconut oil, squalane and glycerin — for dry, sensitive and post-procedure skin, and one of the few cleansers formulated to work without water.
£48.00
iS Clinical Daily Dynamic Hydrator
iS Clinical Daily Dynamic Hydrator is the newest moisturiser in the iS Clinical range on Skintique — a multi-complex formula combining a Sodium Hyaluronate/Glucomannan hydrating base, two forms of vitamin C, copper peptides, and a plankton-derived exosome complex, with no retinoid in the ingredients list.
iS Clinical Eclipse SPF 50+ Review
An all-mineral SPF 50+ built on Titanium Dioxide 5.20% and Zinc Oxide 1.10%, formulated oil-free with an ultra-sheer, matte finish, and the highest SPF number in iS Clinical's UK sunscreen range.
£50.00
iS Clinical Extreme Protect SPF 30 Review
iS Clinical's lightest-finish sunscreen — a hybrid formula combining Octinoxate 5.50% with Zinc Oxide 4.12%, unlike the brand's two mineral-only SPF siblings. Faster-absorbing, but not the pick if you're avoiding chemical filters.
£80.00
iS Clinical Extreme Protect SPF 40 Review
A 100% mineral SPF 40 built on Zinc Oxide 15.3% and Titanium Dioxide 1.3%, available Translucent or in two tinted shades, and the richer-textured, higher-coverage option in iS Clinical's mineral sunscreen line-up.
£85.00
iS Clinical GeneXC Serum Review
iS Clinical's newest vitamin C serum pairs 20% time-released L-Ascorbic Acid with its Extremozyme® blend of Kakadu plum, plankton extract and arginine ferulate — here's how it differs from Super Serum Advance+ and who it suits.
£169.00
iS Clinical Hydra-Cool Serum
iS Clinical Hydra-Cool Serum is a lightweight, water-based hydrating serum built around hyaluronic acid, Centella Asiatica and vitamin B5, with an instant cooling sensation on application. It's designed for dehydrated, sensitive, or freshly-treated skin — including post-procedure, post-sun, and post-shave use — where a calming, non-greasy layer of moisture is needed most.
£64.00
iS Clinical Liprotect SPF 35 Review
A mineral, cherry-flavoured lip SPF from iS Clinical that pairs zinc oxide and titanium dioxide with vitamin E, coconut oil and elderberry extract to protect and condition the lips.
£24.00
iS Clinical Moisturizing Complex Review
A daily, all-skin-types gel-cream moisturiser built on 10% botanically-derived Hyaluronic Acid and Retinyl Palmitate — with the brand's own "non-keratolytic" description explained, and checked against the on-site Pregnancy Safe tag.
£98.00
iS Clinical Neckperfect Complex Review
A Salicylic Acid and willow bark firming cream built specifically for the neck and décolleté, formulated for non-acneic skin types and containing added fragrance.
£110.00
iS Clinical Poly-Vitamin Serum
An evening multi-vitamin serum from iS Clinical that pairs niacinamide and hydration with a low dose of retinol and AHA — a gentler alternative to daily actives, not an actives-free formula.
£72.00
iS Clinical Pro-Heal Serum Advance+ Review
A closer look at iS Clinical's fragrance-free vitamin C and retinol serum for sensitive, reactive and post-procedure skin — the only serum in the brand's range that carries an explicit pregnancy caution on its own product page.
£95.00
iS Clinical Reparative Moisture Emulsion Review
A lightweight, fast-absorbing fluid moisturiser built around iS Clinical's Extremozyme® technology, hyaluronic acid and antioxidants — designed to hydrate, sit well under makeup, and suit sensitive or compromised skin.
£105.00
iS Clinical Sheald Recovery Balm Review
A closer look at iS Clinical's ceramide-and-beta-glucan barrier balm — the only product in the brand's range positioned for use on open, healing skin, and the highest-stakes compliance point in the whole range: always exactly as directed by your practitioner.
£30.00
iS Clinical Super Serum Advance+ Review
A 15% L-Ascorbic Acid and Copper Tripeptide-1 Vitamin C serum, fridge-recommended and built as iS Clinical's flagship treatment step for dullness, uneven tone and early lines.
£95.00
iS Clinical Warming Honey Cleanser Review
A 40% raw honey treatment cleanser built with Royal Jelly, Propolis and papaya enzymes, designed as an occasional 1–2 times weekly deep-clean rather than an everyday wash — not suitable for anyone with a bee or bee-product allergy.
£48.00
iS Clinical Youth Complex Review
A hydration-and-peptide treatment cream built around 15% Hyaluronic Acid, Copper Tripeptide-1 growth factor and 10% Mixed Fruit Acid Extracts — with one ingredient-list inconsistency worth flagging before you buy.
£158.00
iS Clinical Youth Eye Complex Review
A peptide-led eye treatment built around 15% Sodium Hyaluronate, 5% Acetyl Octapeptide-3 and Copper Tripeptide-1 — with one ingredient worth knowing about before you buy: Retinyl Palmitate, a vitamin A ester, sits in the full ingredients list.
£115.00
iS Clinical Youth Intensive Creme Review
A rich, jar-format anti-ageing moisturiser combining Retinyl Palmitate and Tetrahexyldecyl Ascorbate — best introduced gradually, with a noticeable citrus scent.
£234.00
iS Clinical Youth Serum
A concentrated Extremozyme® gel serum with a bioidentical growth factor, built for an instant tightening feel — apply sparingly to avoid pilling.
£158.00