Cortex Retinal 0.1%
Encapsulated retinaldehyde night serum
$95.00
30 ml / 1.0 fl oz · Priced in USD
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- 30-day returns, opened or unopened. Full refund policy.
- A free 5 ml sample ships with every order — add it from Discovery.
One-time purchase — no subscription, no recurring charge. Your statement will show NEURO.
Key actives, at disclosed concentrations
Retinaldehyde (encapsulated)0.1%
A step up from retinol, gentler than prescription strength.
Bakuchiol1%
Pairs with retinal on the look of lines.
Ceramide NP
Offsets the dryness retinoids can cause.
Concentrations are printed on the carton as well as here. Where an ingredient carries no percentage it is present at a supporting level we do not consider worth claiming.
About this formula
Cortex uses retinaldehyde rather than retinol: one conversion step closer to the active form, and correspondingly more effective at a lower percentage. Encapsulation releases it gradually through the night, which is the difference between a retinoid you can keep using and one you abandon in week three.
1% bakuchiol and a ceramide NP / cholesterol blend sit alongside it to keep the barrier comfortable. For the look of fine lines, rough texture and uneven tone. Evening use only, always with morning SPF. Net contents 30 ml (1.0 fl oz).
How to use
- 1Evening only. Start twice a week and build to nightly over four weeks.
- 2Apply a pea-sized amount to dry skin after cleansing. Avoid the immediate eye area.
- 3Follow with a moisturizer. Buffer by applying moisturizer first if you are sensitive.
- 4Broad-spectrum SPF every morning is required while using this product.
- 5Not for use during pregnancy or while breastfeeding. Consult your physician.
Full ingredient list
Aqua/Water, Caprylic/Capric Triglyceride, Glycerin, Cetearyl Alcohol, Retinaldehyde, Bakuchiol, Ceramide NP, Cholesterol, Squalane, Tocopherol, Panthenol, Allantoin, Sodium Hyaluronate, Cetearyl Glucoside, Xanthan Gum, Disodium EDTA, Phenoxyethanol, Ethylhexylglycerin.
Ingredient lists are subject to change. Always read the declaration on the carton you receive. If you have a known allergy, patch test on the inner forearm for 48 hours before facial use. Discontinue use if irritation occurs.
Verified purchases
4.8 out of 5 · 1,291 reviews
“I bought Cortex Retinal 0.1% on the strength of the disclosed percentages and it is the first time a product has done exactly what the page said it would.”
“Took about six weeks before I could see it, which the page did warn me about. Glad I did not give up at four.”
“Third bottle. The packaging keeps it stable much longer than the clear-bottle version I used before.”
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