LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs - Dr Koo Private Practice
LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs - Dr. Koo Private Practice
LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs - Dr. Koo Private Practice
LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs - Dr. Koo Private Practice
LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs - Dr. Koo Private Practice
Advanced concentration of medical grade retinol for cell renewal

LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs

Sale price$215.00
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WHAT IT DOES Repairs Collagen and Elastin, Improves Firmness, Smoothes Visible Lines, Boosts Skin Vibrancy
WHO ITS FOR Deeper Wrinkles, Rough Texture, Significant Pores
KEY INGREDIENTS Retinol, Niacinamide, Squalane, Vitamins D and F, phytosterols, low molecular weight Hyaluronate
Quantity:
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50ml - Our category defining, hardest-hitting retinol is buffered to perfection to deliver maximum change without irritation. At 8000 IUs, this level is for skin that is experiencing significant signs of aging—loss of firmness to deep wrinkles. The retinol is encapsulated into a formula that includes Niacinamide and vitamins D and F, which actively repairs collagen and elastin, and accelerates the cell renewal at every layer. With consistent nightly use, you’ll see a noticeable softening and firming of texture and improved coloration.

Customer Reviews

Based on 21 reviews
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P
Pam C. (St Louis, US)
It works

I have been using Level 4 Retinol for several years. According to friends, my husband, and my own observation, it really has slowed the wrinkles and aging process. I am so grateful that it exists and I can use it!

R
Ronda K. (St Louis, US)
Retinol review.

Great product and I am getting positive results. I am very happy I tried it and plan on using it in my daily routine from now on.

S
SD (New York, US)
Love it

Best purchase this year. In 3 weeks I see good changes

G
Geneva S. (St Louis, US)
Level 4 retinol

This retinol has made my face skin silky smooth and radiant. It’s easy to apply.
Gen

L
Lisa S. (Calabasas, US)
Retinol 8000

Amazing.
No side effects. Goes on easy. Feels great on skin. My sun spots are noticeably fading and my skin makes me happy.