medicube Retinol NMN Boosting Serum
By Nur → Last verified 10/26/2026
Price checked 10/26/2026
At Amazon US; checked 2026-10-26
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What we found
Based on how this product compares to others in the serums category, cross-referenced against retailer listings and market data.
Strengths
- + Dual-retinoid system — lecithin-phase retinol plus retinal — in one emulsion
- + Ceramide NP, cholesterol and squalane barrier support built in
- + Fragrance-free, with ferulic acid stabilisation and titration guidance in retail listings
- + $0.63/mL — Budget tier for a dual-retinoid formula
Worth knowing
- - The brand's 'Retinol-Some 1.9%' figure is the liposomal complex percentage, not pure retinol
- - NMN sits at the INCI tail and its topical evidence is negligible
- - Two retinoids make this unsuitable as a first retinoid
- - No finished-product study located — the evidence rests on the ingredients
Key ingredients
These are the ingredients medicube highlights for this product, cross-checked against general dermatological and cosmetic-chemistry sources, not a full INCI list.
Fragrance: confirmed fragrance-free.
| Ingredient | What it is | What it does for skin |
|---|---|---|
| Niacinamide | A form of vitamin B3, one of the most studied ingredients in cosmetic dermatology. | Strengthens the skin barrier by boosting ceramide production, helps even out tone by limiting pigment transfer to skin cells, and can reduce the look of enlarged pores. |
| Retinol-Some 1.9% (liposomal retinol complex) | A specific active or extract in this formula. | Not yet independently verified against general dermatology sources. |
| Retinal | Retinaldehyde, a form of vitamin A one step away from retinoic acid, so it tends to work faster than retinol. | Supports skin renewal and visibly smooths fine lines and uneven tone with consistent use.Note: Can cause dryness or sensitivity, especially at first. Best used at night with daily sunscreen, and generally avoided during pregnancy and breastfeeding. |
| Ceramide NP | One specific, well-studied type of ceramide used in skincare formulas. | Reinforces the skin barrier and helps it retain moisture, the same core ceramide function. |
| Cholesterol | One of the three core lipids (alongside ceramides and fatty acids) that make up the skin barrier. | Works together with ceramides and fatty acids to reinforce the barrier and reduce moisture loss. |
| Ferulic Acid | A specific active or extract in this formula. | Not yet independently verified against general dermatology sources. |
| Acetyl Hexapeptide-8 | A specific active or extract in this formula. | Not yet independently verified against general dermatology sources. |
| Carnosine | A specific active or extract in this formula. | Not yet independently verified against general dermatology sources. |
What the brand says
medicube's own marketing claims, not our own findings.
- Dual retinoids — retinol plus retinal — for firmer, smoother-looking skin
- Ceramide NP and cholesterol support the barrier while you titrate
- Fragrance-free emulsion; start a few evenings a week and build by tolerance
Research-Based
Our assessment comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. This product hasn't been hands-on tested yet. See our Methodology for what that distinction means.
Price history
Current price is the lowest we've recorded so far.
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Frequently asked
How much does medicube Retinol NMN Boosting Serum cost per mL?
$0.63 per mL (currently $18.90 for 30 mL).
Has medicube Retinol NMN Boosting Serum been hands-on tested?
Not yet. Our assessment for this product comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. See our Methodology for what that distinction means.
What are the key ingredients in medicube Retinol NMN Boosting Serum?
The ingredients medicube highlights for this product include Niacinamide, Retinol-Some 1.9% (liposomal retinol complex), Retinal, Ceramide NP, Cholesterol, Ferulic Acid, Acetyl Hexapeptide-8, Carnosine.
Sources
Pricing and availability for this product were verified against the following retailer listings.