If you've spent any time browsing Olive Young hauls, you've probably seen FATION before, it's one of Korea's best-known names in "trouble care," the K-beauty category built specifically for acne-prone, congested and reactive skin. We're excited to say the brand's flagship Nosca9 line has officially joined the PURESEOUL shelves — and to celebrate the launch, the whole range is 15% off.

"Trouble" is the term K-beauty uses for breakouts, congestion and the redness and sensitivity that comes with them, so "trouble care" means products built to calm active blemishes without further irritating the skin around them. FATION built its reputation on exactly that balance, and its Nosca9 line has since expanded too, where its Deep Pore Cleansing Foam has picked up as their global bestseller.

What sets Nosca9 apart is that it isn't just soothing, it's built around two signature complexes that run through the whole range:

• Heparin RX Complex: pharmaceutical-grade sodium heparin, used across the line to calm inflammation and support barrier repair in compromised, trouble-prone skin.

• Nano-Retinal RX Complex: developed with Korean pharmaceutical company Dong-A, this pairs retinal (a derivative the brand positions as a gentler alternative to retinol) with supporting ingredients designed to deliver pore-refining benefits without the dryness retinal-based products can often cause.

Nosca9 at PURESEOUL actually splits into two related ranges, so it's worth knowing which one your skin needs:

• The Trouble line (Clear Toner, Trouble Serum, Trouble Cream, Trouble Serum Mask) is the soothing, calm-it-down side of the range, built around cica and the Heparin RX Complex for actively irritated, reactive or acne-prone skin.

• The Pore Enhancing line (Pore Enhancing Serum, Pore Enhancing Cream) brings in the Nano-Retinal RX Complex for anyone whose main concern is enlarged, visible pores and oiliness rather than active redness.

You don't have to pick only one, many people cleanse and tone with the core Trouble essentials, then layer in the Pore Enhancing serum or cream as their evening treatment step.

1. Cleanse

• FATION Nosca9 Cleansing Gel (200ml) - £10.20 (was £12.00) - a gentle, low-pH daily cleanser for blemish-prone skin, with a Heparin RX Complex to soothe while it cleanses.

• FATION Nosca9 Deep Pore Cleansing Foam (150ml) - £10.20 (was £12.00) - a deeper clean for 2–3 times a week, combining kaolin clay, salicylic acid and retinal to target pores and blackheads without stripping skin.

FATION Nosca9 Trouble Clear Toner (200ml) - £11.05 (was £13.00) - a low-irritant exfoliating toner with salicylic acid to clear congestion, balanced with panthenol and ceramide NP to keep the barrier comfortable.

• FATION Nosca9 Trouble Serum (30ml) - £11.90 (was £14.00) - a calming serum built around fresh cica, sodium heparin and over 3% panthenol, aimed squarely at redness and active breakouts.

• FATION Nosca9 Trouble Pore Enhancing Serum (30ml) - £12.75 (was £15.00) - the Nano-Retinal RX pick, aimed at visibly refining enlarged pores and controlling oil, with niacinamide and a peptide complex alongside it.

• FATION Nosca9 Trouble Cream (45ml) - £15.30 (was £18.00) - a barrier-repair cream with a 5-type ceramide complex and a high concentration of cica, suitable for layering as a spot treatment on problem areas.

• FATION Nosca9 Trouble Pore Enhancing Cream (45ml) - £16.15 (was £19.00) - the richer, retinal-based finishing step for anyone focused on pore refinement, with the same Heparin RX and peptide support.

FATION Nosca9 Trouble Serum Mask (25ml) - £2.55 (was £3.00) - a quick sheet mask for whenever skin needs extra calming, with centella, panthenol and tea tree extract.

FATION Nosca9 Trouble Body Wash (490ml) - £12.75 (was £15.00) - a subacidic body wash for back and chest breakouts, combining salicylic acid with an AHA/PHA/LHA acid complex and the same Heparin RX Complex used across the skincare range.

The Pore Enhancing Serum and Cream both contain retinal, so it's worth treating them the way you would any retinoid-family ingredient: introduce them gradually (every other night to start), use them in your evening routine rather than the morning, and keep your SPF consistent the next day since retinoids can increase sun sensitivity. As always, retinoid-family ingredients aren't recommended during pregnancy or breastfeeding, check with your doctor if that applies to you. Every Nosca9 product page also recommends a patch test before first use, which is good practice with any new actives.

FATION's Nosca9 line brings something genuinely considered to trouble care, rather than just throwing acids at breakouts, it pairs them with real barrier-repair ingredients, so skin can calm down without being left stripped and reactive. Whether your main concern is active breakouts, visible pores, or just an easily irritated complexion, there's a clear starting point in the range, and with 15% off across the board to mark the launch, now's the time to try it.

Shop the full range in the FATION collection at PURESEOUL while the launch discount lasts.