LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs

50ml

$215

My 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. I’ve encapsulated the retninol into a formula that includes B3, Vitamins A, D and F to actively repair collagen and elastic and accelerate the cell renewal at every layer. With consistent nightly use, you’ll see a noticeable softening and firming of texture and improved coloration.

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Created For

For deep wrinkles, rough texture and significant signs of aging 

Benefits

collagen and elastin repair, cellular renewal, improved texture, healthier glow and firmness

How To Use

Use nightly on clean skin, before any other treatment product. Year round use is recommended as consistency is always key to visible results.

Ingredients

Purified Water, Niacinamide, Squalane, Glycerin, Glyceryl Stearate, PEG-100 Stearate, Caprylic/Capric Triglyceride, Cetyl Alcohol, Sclerocarya Birrea Seed Oil, Cocos Nucifera (Coconut) Oil, Hexylresorcinol, Retinol, Ceramide NP, Sodium Hyaluronate, Phytosterols, Aloe Barbadensis Leaf Extract, Bisabolol, Dimethicone, Tocopheryl Acetate, Persea Gratissima (Avocado) Oil, Ethyl Linoleate, Mica, Olea Europaea (Olive) Fruit Oil, Zingiber Officinale (Ginger) Root Extract, Cetearyl Alcohol, Disodium EDTA, Phenoxyethanol, Sodium Polyacrylate, Polysorbate 20, Ethylhexylglycerin, and Stearic Acid 

Who is Retinol Level 4 For You?

This blend aggressively recovers your skin’s fatigue and damage. You will see improvement in your skin’s firmness, smoothness and overall health.

Which Level of Retinol Is Right For Your Skin?

Retinol is THE secret weapon against aging and uneven skin tone! The key is to find the correct level for your unique skin. I have taken the guess work out of the choice and created four levels based on damages, ages and needs.

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Customer Reviews

Based on 8 reviews
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E
Elisabeth W.
Love love Dr Koo skincare

Love using all of Dr. Koo’s skincare products. My skin is softer, smoother less blotchy and looks years younger! Thank you Dr Koo!

M
Margaret D.
What a Koo I found.

“Love my night only, level 4 Optimum Retinol Restoring 8000 IUS —
under my Koo anti-oxidant vitamin serum. Only question/educzgion is there another “level 4” I should add on at senior moment 73 yrs.. young, Koo?
Peggy

K
Karen B.

Use at night. It has taken odd skin tics, fine lines are softening, stopped breakouts,

M
Marie N.
Quick Results

I love this product. I was amazed at how quick I saw the results!

V
VS

I always get comments on how great my skin is - due to Dr. Koo’s products.