Barrier Repair Duo

✓ 97% agree skin feels moisturised — Exosome Barrier Repair Serum

✓ 97% said skin felt moisturised, calm and soothed — Signature Serum Light, first use

✓ 95% said skin felt nourished and hydrated — Exosome Barrier Repair Serum, first use

✓ Over 90%: skin feels moisturised, rebalanced and smooth-looking — Signature Serum Light

✓ 90% agree skin feels soothed and smoothed — Exosome Barrier Repair Serum

Water Radish Exosomes — Exosome Barrier Repair Serum

Derived from the Water Radish plant, these active exosomes contain a unique compound that helps brighten the skin and strengthen its natural barrier.

Triple Ceramide Blend, Olive Ceramides — Exosome Barrier Repair Serum

Three essential skin-identical ceramides, plus olive ceramides, that help restore the natural barrier, reduce roughness, improve skin tone and soften the appearance of wrinkles.

Oat Kernel Extract, Pine Bark Phytosterols — Exosome Barrier Repair Serum

A natural lipid complex rich in skin-identical fatty acids, with phytosterols that mimic the lipids found in skin. Leaves skin soothed and moisturised, and helps reduce the appearance of redness while restoring barrier function.

Niacinamide — Signature Serum Light

Improves the skin’s barrier function and reduces excess oil and the appearance of hyperpigmentation, for clearer, more balanced skin.

SOM1X® — Signature Serum Light

Dr Somji’s proprietary blend of Centella, Marine Prebiotics, Ceramides and MSM, designed to restore a healthy, balanced complexion while soothing, nourishing and protecting stressed skin.

Hyaluronic Acid Complex — Signature Serum Light

A hydrating complex with antioxidant properties that restores and continuously replenishes moisture.

What's the difference between the Barrier Repair Duo and The Barrier Builders?

The Barrier Repair Duo is two lightweight serums for normal, combination and oily skin. The Barrier Builders is a three-step routine for dry, mature and sensitive skin, pairing the Exosome Barrier Repair Serum with Nourishing Cream Cleanser and the richer Night Recovery Cream. If your skin is dry rather than oily, start with The Barrier Builders.

Does the duo contain retinol, and can I keep using my actives?

Neither serum contains retinol. You can use the duo alongside your usual actives, but if your skin is stinging or flaking, our clinic advice is to pause strong actives for a couple of weeks while your barrier recovers. Then bring them back gradually, one at a time. If you use a prescription retinoid, follow your prescriber's advice.

Can I use the Barrier Repair Duo after an aesthetic treatment?

Yes. Both serums are fragrance free, dermatologically tested and suitable for sensitive skin, so they're a gentle way to support skin while it settles after treatments such as laser, microneedling or peels. Check with your practitioner when it's safe to restart your routine.

Will these serums feel heavy or greasy on oily skin?

No. Both have light textures that absorb quickly, and the Signature Serum Light was formulated specifically for normal to oily skin. Trial participants described it as hydrating without being oily, and said it worked well under foundation.

How long until I see results from this duo?

Most people feel a difference from the first application: 97% said the Signature Serum Light left skin moisturised, calm and soothed after first use, and 95% said the Exosome Barrier Repair Serum left skin nourished and hydrated. After 4 weeks of daily use, 90% agreed skin felt soothed and smoothed. Use both serums consistently, morning and evening, while the barrier rebuilds.