LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs

50ml

$215

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 B3 and vitamins A, 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.

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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 12 reviews
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S
Susan L.

Excellent stuff
Thank YOU Dr. KOO
my face & complexion by 'Koo' I'm 74 & most grr8tful for Her gifts!

G
Galia M.
Love it

Will buy again

K
Kimberly K.
Love it!

No irritation or redness.

S
Sue N.
Level 4 retinol restoring

This product is the best retinol I have ever used. I will never go back to my former product. It works wonders on my skin texture.

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!