Isntree — Hyper Retinol EX 1.0 Serum — 20ml

Best for: Skin with fine lines, uneven texture, or early signs of aging — for those ready to start retinol

1% retinol. Clinical strength. K-beauty delivered.
Isntree's Hyper Retinol EX 1.0 Serum offers a concentrated 1% retinol formula with encapsulation technology to minimize irritation — bringing one of dermatology's most proven anti-aging ingredients into a gentle daily format.

• 1% encapsulated retinol slowly releases to reduce irritation risk
• Visibly improves fine lines, skin texture, and uneven tone over 4–8 weeks
• Niacinamide supports skin as retinol works — a calming counterpart
• For PM use only — retinol increases sun sensitivity

Key Ingredients

• Retinol (1%) — Vitamin A derivative proven to accelerate cell turnover, reduce wrinkles, and improve skin texture
• Encapsulation Technology — Wraps retinol in a protective coating that releases slowly, reducing irritation vs. bare retinol
• Niacinamide — Calms potential retinol-induced irritation and brightens skin simultaneously

How to Use

1. Use PM only — retinol should never be used in the morning
2. Start 2–3 times per week; increase frequency as skin adjusts
3. Apply after toner, before moisturizer
4. Always wear SPF the next morning

FKWL Tip
New to retinol? Start with 2x per week, sandwich it between hydrating toner and a rich moisturizer, and let your skin adjust over 4 weeks before increasing frequency. The encapsulation makes this one of the gentlest 1% formulas available.