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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Dr Michele Koo
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 

Customer Reviews

Based on 4 reviews
100%
(4)
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V
VS

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

L
Lori L.

LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs

P
Patricia M.-.O.
Love this!

Level 4 has been a game changer for me. Seeing fabulous results on stubborn dark spots and large pores! Highly recommend!

A
Ann S.
Retinal level 4

I don't see any change. Maybe I'm not putting it on right?

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 4 reviews
100%
(4)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
V
VS

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

L
Lori L.

LEVEL 4 – pH OPTIMUM RETINOL RESTORING - 8000 IUs

P
Patricia M.-.O.
Love this!

Level 4 has been a game changer for me. Seeing fabulous results on stubborn dark spots and large pores! Highly recommend!

A
Ann S.
Retinal level 4

I don't see any change. Maybe I'm not putting it on right?