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Shop numbuzin No.9 NAD+ Retinol Volumetox Eye Cream
Treatment
numbuzin

No.9 NAD+ Retinol Volumetox Eye Cream

~$16.35· Standard Size

What it's good for

Key actives from our research database. Click any to read the full evidence dossier.

  • RetinolStrong evidenceFull dossier ↗

    Speeds up how fast your skin renews itself so old, dull cells shed faster and fresher skin shows through. Builds collagen over time, smoothing fine lines.

    Good for: Anti-aging

  • NAD+Anecdotal evidenceFull dossier ↗

    The ultimate "cell recharger." It boosts your skin's cellular energy to speed up repair and protect against aging at the DNA level. It's the new high-tech standard for longevity skincare.

    Good for: Anti-aging, Barrier repair

New to this? Patch test on your inner arm for 24 to 48 hours before applying to your face. If you have sensitive skin or rosacea, start 2 to 3 times per week and build up slowly.

Evidence behind the ingredients

Real citations from our research database, one per tracked active in this product. Click any ingredient name to read its full evidence dossier.

RetinolStrong evidence11 citations

Speeds up how fast your skin renews itself so old, dull cells shed faster and fresher skin shows through. Builds collagen over time, smoothing fine lines.

SCCS Revision of the Scientific Opinion on Vitamin A (Retinol, Retinyl Acetate, Retinyl Palmitate), SCCS/1639/21, final version adopted 24-25 October 2022

2022Safety assessmentSCCS/1639/21View source ↗

Chien AL et al. Biomarkers of Tretinoin Precursors and Tretinoin Efficacy in Patients With Moderate to Severe Facial Photodamage: A Randomized Clinical Trial. JAMA Dermatology. 2022;158(8):892-900. doi:10.1001/jamadermatol.2022.1891 — RCT comparing topical retinol precursors vs tretinoin for photoaging; both showed equivalent wrinkle reduction at week 24 with retinol formulation causing 6x less erythema than tretinoin.

2022Positive (efficacy)PMID:35675051View source ↗

MFDS Approved Functional Cosmetic Active — Retinol (anti-wrinkle). Korean Ministry of Food and Drug Safety, Cosmetic Functional Active Ingredient List — listed alongside Adenosine, Retinyl Palmitate, and Polyethoxylated Retinamide in the Korean Functional Cosmetics Codex anti-wrinkle category

2020Regulatory approvalMFDS:Retinol-AntiWrinkleView source ↗
NAD+Anecdotal evidence2 citations

The ultimate "cell recharger." It boosts your skin's cellular energy to speed up repair and protect against aging at the DNA level. It's the new high-tech standard for longevity skincare.

Ministrini S, Liberale L, Erle HE, Percoco G, Tfayli A, Assi A, Kapitonov I, Greiner I, Camici GG, A Liposomal Formulation Enhances the Anti-Senescence Properties of Nicotinamide Adenine-Dinucleotide (NAD+) in Endothelial Cells and Keratinocytes, Current Issues in Molecular Biology 2025 — in-vitro: liposomal NAD+ reduced senescent cells in human keratinocytes and endothelial cells and increased skin penetration ~30% vs free NAD+ (cell-based mechanism)

2025Mechanism onlyPMID:41020844View source ↗

Kang S, Park J, Cheng Z, Ye S, Jun SH, Kang NG, Novel Approach to Skin Anti-Aging: Boosting Pharmacological Effects of Exogenous Nicotinamide Adenine Dinucleotide (NAD+) by Synergistic Inhibition of CD38 Expression, Cells 2024 — in-vitro: exogenous NAD+ on human fibroblasts protected against UV-induced and intrinsic aging via sirtuin/autophagy pathways; effect amplified by CD38 inhibition (cell-based mechanism)

2024Mechanism onlyPMID:39513906View source ↗

Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.

Layering conflicts

Ingredients in this product that can react with common actives. Avoid stacking unless noted.

  • Retinol + salicylic acid can over-exfoliate and damage the barrier. Alternate nights.

  • Retinol + glycolic acid is a classic barrier-buster. Use on different nights.

  • Retinol + lactic acid is gentler than glycolic but still alternate nights to be safe.

  • Retinol + mandelic acid — alternate nights to preserve barrier integrity.

  • Benzoyl peroxide can break down retinol. Use one in the morning and the other at night, or pick a stabilized formula made to combine them.

  • Vitamin C and retinol work best at different pH levels. Use vitamin C in the morning and retinol at night.

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Not medical advice. GlowPal is educational. Patch-test new products and talk to a qualified healthcare professional before changing your routine, especially if you're pregnant, nursing, or have a diagnosed skin condition. See our terms.