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엔엠엔 · 전성분 · Living ingredient passport

NMN

A cutting-edge NAD+ precursor that recharges cellular energy (ATP), enhances mitochondrial function, and suppresses melanogenesis to repair skin barrier damage and reverse signs of photoaging.

GentlenessNot yet scored See how we verify EvidenceIndicativeTopical
INCI
NICOTINAMIDE MONONUCLEOTIDE

Also called Beta-Nicotinamide Mononucleotide · β-NMN · Nicotinamide Mononucleotide

Early-stage page

This ingredient page is still early. We're actively researching before it's ready to stand fully on its own — check back as more sections are verified.

The short answer

Four lines, each compressed from the section it links to. Every line carries the sources of the claim it compresses.

How to use it

Where it sits in the seven-step ladder, and the record's own fields for the habit.

아침DayDay: used
저녁NightNight: used

day and night

Cleanser클렌저
Toner토너
Essence에센스
Serum세럼 sits here
Eye cream아이크림
Moisturizer크림 sits here
Sunscreen자외선차단제

Filled steps are where NMN commonly appears. No product is recommended.

Everything here comes from the sources below. None of it is a product recommendation.

Time of day
day and night
Where it sits
serum or moisturizer step
Starting frequency
daily
Amount
moderate amount (1-2 pumps or a few drops of serum)
Application
Apply evenly to clean, dry face, neck, and chest as an active serum or cream. Gently pat to promote absorption.
Storage
Store in a cool, dry place away from direct heat and light. Keep container tightly sealed.

Plays well with / keep apart

One card per pair. Where the partner has its own passport, the name links to it.

Do layer it with

Niacinamide (Vitamin B3)

Acts synergistically within the NAD+ salvage pathway, combining Niacinamide's barrier-building and melanosome-blocking activity with NMN's cellular NAD+ boosting energy.

Read the passport

What to expect, and when

The record's own timeline. Each step keeps the source of the study it came from.

  1. Immediate

    Skin hydration, softening, and initial barrier conditioning.

Is this safe for me

Everything the record says about suitability, consolidated. Pause-first comes first.

Before you start

Highly stable and exceptionally safe for topical use. No known photosensitivity or major adverse reactions reported.

Best match

aging skin

hyperpigmentation · damaged skin barrier · dull complexion · photoaged skin

Routine

serum or moisturizer step

Pregnancy and breastfeeding

Not medical advice · ask your own clinician

Pregnancy. A 2011 dermatology review of skin-care product safety in pregnancy names hydroquinone (high systemic absorption) and tretinoin (evidence controversial) as the actives of concern, and states that most other topical skin-care products act locally and produce minimal systemic absorption; NMN is not named among the flagged concerns 3. This is general topical-product reasoning rather than an ingredient-specific safety trial. If you are pregnant, ask your doctor before use.

Breastfeeding. Topical application is applied locally with minimal expected systemic absorption; no ingredient-specific breastfeeding safety trial was located. As a general precaution common to topical actives, avoid applying directly to the breast or nipple area, since incidental transfer to a nursing infant has not been studied for this ingredient. If you are breastfeeding, ask your doctor before use.

Expected versus unacceptable reactions
Common, and it usually settlesStop using it
None typically expected. NMN is exceptionally biocompatible and non-irritating.persistent redness
localized itching
burning sensation
rash

Allergen history

A dedicated search of the peer-reviewed literature (PubMed) for topical NMN / nicotinamide mononucleotide allergic contact dermatitis, contraindication, and sensitization case reports found none.

Who should not use it

Not yet researched

Research in progress — check back soon. How we verify

What it will not do

  • The 3D human skin model melanin-reduction results demonstrated with 1.0 mM NMN cannot be assumed for wash-off cleansers due to negligible skin contact time.
  • The systemic metabolic anti-aging findings from oral NMN dietary supplementation cannot be directly equated to localized topical skin benefits.
  • The deep mitochondrial NAD+ boosting effects of pure crystalline Beta-NMN cannot be assumed for crude, unpurified fermentation byproducts.

The evidence

One card per claim. Concentration, form, population and limitation sit with it, always visible.

Grade legend
  • Indicative
  • Limited
  • Moderate
  • Strong

Melanin Production Reduction in Aged Melanocytes

Indicative

Significantly reduces melanin production in aged melanocytes and 3D reconstituted human skin models by downregulating cAMP/Wnt signaling.1

Tested concentration
1.0 mM (approx 0.033%)
Which form
Beta-Nicotinamide Mononucleotide (β-NMN)
Population and duration
Primary human melanocyte cell cultures and 3D human skin equivalents evaluated over 72 to 120 hours
Limitation
Selective depigmenting effect observed specifically in aged melanocytes rather than young baseline melanocytes.
Open

Large-scale, multi-center, double-blind, randomized controlled human clinical trials assessing topical NMN monotherapy (1.0% cream) on facial photoaging and wrinkle depth over 12 weeks.

Open

The research packet's headline photoaging-reversal claim (wrinkle formation, skin barrier function, hydration and elasticity) rests on a real animal study whose own delivery route is oral supplementation, not the topical cosmetic application this record covers. This record does not map that claim, and does not map the mechanism citation, pairing rationale, or usage-timeline text that depended on it.

How we verify

Questions & related

Common questions · 자주 묻는 질문

What is NMN in skincare and how does it work?

NMN (Nicotinamide Mononucleotide) is a precursor to NAD+ (Nicotinamide Adenine Dinucleotide), an essential coenzyme present in every living cell. NMN converts to NAD+ inside cells, activating sirtuin enzymes involved in cellular energy metabolism. 2

Can NMN help fade dark spots and hyperpigmentation?

Yes. Research in 3D human skin models demonstrates that NMN selectively reduces melanin production in aged melanocytes by downregulating the cAMP/Wnt signaling pathway, helping to fade age-related hyperpigmentation. 1
The clinical recordHow it works · Forms · Manufacturing · Regulations · Study ledger · Gaps · Sources

How it works

NMN is a direct biochemical precursor to Nicotinamide Adenine Dinucleotide (NAD+). Intracellularly it converts to NAD+, activating sirtuin longevity enzymes (SIRT1, SIRT3) and enhancing mitochondrial ATP energy production 2, and it downregulates cAMP/Wnt melanogenesis signaling in aged melanocytes.

  1. Intracellular NAD+ Biosynthesis and Sirtuin Activation

    Converts to NAD+ within cells, activating SIRT1 to promote mitochondrial biogenesis, DNA repair, and antioxidant superoxide dismutase (SOD) defense.

    What that rests on: in-vitro and pre-clinical assays

    Source2

  2. cAMP/Wnt Melanogenesis Downregulation in Aged Melanocytes

    Selectively downregulates forskolin-induced cAMP/Wnt signaling in aged melanocytes, reducing tyrosinase expression and melanin synthesis in 3D skin models.

    What that rests on: 3D human skin model and cell culture

    Source1

Reading the label

Find this name
엔엠엔 (NMN) — a NAD+ precursor used for cellular vitality and anti-aging in K-beauty serums.
Terms that may mislead
Not on the MFDS publicly notified functional list, so brands co-dose it with Adenosine 0.04% or Niacinamide 2%-5% for simplified functional cosmetic reporting.
Judge production transparency
Manufacturers disclose HPLC purity, optical rotation, heavy metal COAs, and microbiological profiles. Proprietary enzyme sequences are kept confidential.
Compare the forms
AttributeBeta-Nicotinamide Mononucleotide (β-NMN)
What it isThe biologically active beta-anomer that directly converts to NAD+ in human cells.
Official INCINICOTINAMIDE MONONUCLEOTIDE
Where it comes fromBiotechnological enzymatic synthesis or microbial fermentation
How it is madeProduced via enzymatic conversion of nicotinamide and ribose using nicotinamide phosphoribosyltransferase (NAMPT) or bio-fermentation, followed by ultrafiltration, crystallization, and freeze-drying to isolate pure crystalline β-NMN powder.

How it is actually made

  1. Origin regions: South Korea, Japan, China, United States
  2. Manufactured via biotechnological enzymatic synthesis using nicotinamide phosphoribosyltransferase (NAMPT) or microbial fermentation using yeast or E. coli vectors, followed by crystallization and purification.
  3. Controlled by HPLC assay ensuring >= 99.0% Beta-NMN active content, with strict limits on heavy metals (<= 10 ppm), moisture (<= 1.0%), and microbial purity.
  4. Manufacturers disclose HPLC purity, optical rotation, heavy metal COAs, and microbiological profiles. Proprietary enzyme sequences are kept confidential.

Where the ceiling is set

European Union

The rule
EU Cosmetics Regulation (EC) No 1223/2009
What it allows
Listed in the CosIng database (ref 94540) under NICOTINAMIDE MONONUCLEOTIDE (CAS 1094-61-7) with the function antioxidant -- a function listing, not a regulatory approval or safety determination.

South Korea

The rule
Ministry of Food and Drug Safety (MFDS) Cosmetics Safety Standards
What it allows
Not found on any MFDS restricted-ingredient list. Not on the MFDS publicly notified functional list, requiring co-dosing with Adenosine (0.04%) or Niacinamide (2%-5%) for simplified functional cosmetic reporting.

What the evidence rests on

Study records

What is still missing

  • Large-scale, multi-center, double-blind, randomized controlled human clinical trials assessing topical NMN monotherapy (1.0% cream) on facial photoaging and wrinkle depth over 12 weeks.

    The exact quantitative wrinkle-depth reduction of topical NMN monotherapy on human facial skin remains an approximation, as key in-vivo datasets currently rely on animal photoaging models and 3D human skin equivalents.

    NeedsA randomized, double-blind, vehicle-controlled human trial evaluating 1.0% topical NMN cream vs vehicle on 100 photoaged human subjects over 12 weeks.

  • The research packet's headline photoaging-reversal claim (wrinkle formation, skin barrier function, hydration and elasticity) rests on a real animal study whose own delivery route is oral supplementation, not the topical cosmetic application this record covers. This record does not map that claim, and does not map the mechanism citation, pairing rationale, or usage-timeline text that depended on it.

    This record cannot state that topical NMN reverses photoaging or repairs skin barrier function in a real, verified topical trial. The general cellular NAD+/sirtuin mechanism is still supported, and the melanin-reduction claim is separately mapped and unaffected, but the flagship photoaging-reversal benefit is not established for topical use.

    NeedsA topical or cutaneous NMN study, in any concentration and population, that measures skin barrier function, wrinkle formation, hydration or elasticity against a vehicle or untreated control.

Sources on file