Product Overview

Cos De BAHA Retinol 2.5% Serum (RS) is a Korean skincare serum formulated with retinol, niacinamide, hyaluronic acid and vitamin E. It is designed to improve the appearance of fine lines, uneven skin texture, dullness and visible signs of ageing.

Retinol supports skin renewal, while hydrating and skin-conditioning ingredients help maintain a smoother, softer-looking complexion.

2. Key Benefits

• Anti-Aging Care: Helps reduce the appearance of fine lines and wrinkles.

• Skin Renewal: Supports smoother-looking skin texture.

• Uneven Skin Tone: Helps improve the appearance of dark spots and uneven tone.

• Hydration: Hyaluronic acid helps retain moisture.

• Antioxidant Care: Vitamin E helps protect the skin from oxidative stress.

• Skin Conditioning: Niacinamide supports a healthy-looking skin barrier.

  How to Use

  1. Cleanse your face and allow the skin to dry.

  2. Apply a small amount of serum at night.

  3. Avoid the eyelids, lips and corners of the nose.

  4. Follow with a gentle moisturiser.

  5. Start with 1–2 nights per week and gradually increase only if your skin tolerates it.

  6. Apply broad-spectrum SPF 30 or higher every morning.

  Important precautions:

  • Perform a patch test before first use.

  • Do not combine it in the same routine with strong exfoliating acids or other irritating active treatments when starting.

  • Avoid use during pregnancy; consult a healthcare professional if breastfeeding.

  • Stop using it if significant irritation develops.