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iS Clinical Youth Eye Complex Review

Updated Aug 20, 2026
iS Clinical Youth Eye Complex in a lifestyle bathroom setting — Skintique review

The Verdict

Youth Eye Complex packs a genuinely broad actives list into a single 15g pot: a hydrating humectant, a neuropeptide, a growth-factor peptide and a marine ferment extract, aimed squarely at fine lines, crow's feet and puffiness around the eyes. The one thing worth knowing before you buy is that its full ingredients list includes Retinyl Palmitate, a vitamin A ester — iS Clinical's own product notes flag daily SPF as essential while using it, which is a fair trade for most people but worth factoring in if you're trying to keep vitamin A derivatives out of your eye-area routine, or if you're pregnant or breastfeeding. For a peptide-led eye treatment without a retinoid, C Eye Serum Advanced+ is the non-retinoid alternative in the same range.

iS Clinical Youth Eye Complex | Anti-Ageing Eye Treatment | 15g

iS Clinical Youth Eye Complex | Anti-Ageing Eye Treatment | 15g

£115.00

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iS Clinical Youth Eye Complex is a peptide-led eye treatment built around 15% Sodium Hyaluronate, 5% Acetyl Octapeptide-3 and Copper Tripeptide-1, formulated for the periorbital area and lips. Its full ingredients list also includes Retinyl Palmitate, a vitamin A derivative — which is why iS Clinical's own product notes call daily SPF essential while using it. It comes in a single 15g airless-pump size.

What it is

Youth Eye Complex sits in Skintique's Eye Care category rather than under Serums, and is built as a multi-active treatment cream rather than a single-ingredient product. The formula combines:

  • 15% Sodium Hyaluronate — a hydrating, water-binding humectant for the delicate under-eye area.
  • 5% Acetyl Octapeptide-3 (also known as SNAP-8) — a neuropeptide used to help improve the appearance of expression lines around the eyes.
  • Tripeptide-1 (Copper Tripeptide-1) — a growth-factor peptide used across several iS Clinical formulas to support the skin's own collagen-building processes.
  • Pseudoalteromonas Ferment Extract — a marine-derived ferment ingredient, sometimes described as an extremozyme, included for its antioxidant and skin-conditioning properties.

The full ingredients list also includes Retinyl Palmitate (a vitamin A ester), Tocopheryl Acetate (Vitamin E), Ascorbyl Palmitate (Vitamin C), Dipotassium Glycyrrhizate (a licorice-root derivative), and Asiaticoside and Madecassic Acid from Centella Asiatica.

Texture and how it feels

iS Clinical describes the texture as lightweight and creamy, absorbing without a greasy residue and leaving a dewy finish that sits well under makeup. It's dispensed from an airless pump, which is worth noting for a formula containing actives like Retinyl Palmitate that can be sensitive to air and light exposure.

A note on Retinyl Palmitate

Youth Eye Complex's full INCI ingredients list includes Retinyl Palmitate — a stable, esterified form of vitamin A. iS Clinical's own product notes flag this directly: because the formula contains a vitamin A derivative, daily broad-spectrum SPF is essential whenever you're using it, whether you apply it morning or evening. If you'd rather keep a peptide-led eye treatment in your routine without a retinoid in the mix, C Eye Serum Advanced+ is the non-retinoid alternative in the same eye-care range.

Who it suits

Best for anyone wanting a multi-active eye treatment — hydration, a neuropeptide, a growth-factor peptide and a vitamin A ester — in one step, rather than layering several separate eye products. It's also suitable for use on the delicate lip area to help improve the appearance of perioral lines, per iS Clinical's own directions.

If you'd rather keep Retinyl Palmitate out of your eye-area routine, or you're pregnant or breastfeeding, C Eye Serum Advanced+ is worth reading first.

How to use

iS Clinical's directions call for around half a pump, applied with the ring finger to the brow bone and under-eye area, avoiding the inner corners of the eyes and the lash line. It can be used up to twice daily, applied to clean, dry skin before heavier moisturisers, and always followed by daily SPF given the Retinyl Palmitate content.

Pairs well with

Youth Eye Complex shares its Copper Tripeptide-1 growth-factor peptide with Youth Complex, which is formulated for the rest of the face rather than the eye area — iS Clinical's own directions say to avoid the immediate eye area when applying Youth Complex, which is why the two are designed to work together rather than in place of each other. For the daily SPF that a Retinyl-Palmitate-containing product like this one calls for, see our iS Clinical sunscreen guide.

Pregnancy and breastfeeding

If you're pregnant or breastfeeding, please contact our team for advice before use.

FAQs

Is iS Clinical Youth Eye Complex a retinol product?

Not a standalone retinol treatment, no — but its full ingredients list does include Retinyl Palmitate, a vitamin A ester, alongside its peptide and hyaluronic acid actives. iS Clinical's own product notes say daily SPF is essential while using it because of that ingredient.

What's the difference between Youth Eye Complex and C Eye Serum Advanced+?

Youth Eye Complex is a peptide-and-Retinyl-Palmitate treatment cream built around Sodium Hyaluronate, Acetyl Octapeptide-3 and Copper Tripeptide-1. C Eye Serum Advanced+ is the non-retinoid alternative in iS Clinical's eye-care range for anyone who wants to avoid a vitamin A derivative around the eyes.

Can I use Youth Eye Complex on my lips as well as my eyes?

Yes — iS Clinical's own directions say the formula is gentle enough to use on the delicate lip area to help improve the appearance of perioral lines, as well as the periorbital area it's primarily formulated for.

Does Youth Eye Complex need to be used with sunscreen?

Yes. Its full ingredients list includes Retinyl Palmitate, a vitamin A derivative, and iS Clinical's own product notes call daily broad-spectrum SPF essential whenever it's in your routine.

How much Youth Eye Complex should I use?

iS Clinical's directions call for around half a pump per application, applied with the ring finger to the brow bone and under-eye area, avoiding the inner corners of the eyes and the lash line.

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