Scored on the same 100-point, five-axis rubric. Named listings are limited to overseas brands and top-tier domestic products with publicly verifiable evidence; unverifiable low-quality items appear as a category rather than by name.
Conflict-of-interest disclosure: KNI and EGA share ownership and management. EGA products are included in our NMN comparisons. We apply the same published criteria to all products; please review the evidence behind EGA's score.
Published
2026-08-20
·
Last reviewed
2026-08-31
·
Data as of
2026-08 — Based on official retailer listings and published test reports
Grade
Product
Total
Cost per active unit/100mg
Daily costWomen 250mg / Men 375mg
Days of supplyWomen / Men
S
EGA NMN Daily RegeneratorShared ownership with KNI
250 mg/day, published 99.9% purity, named ROKIT NMN® ingredient brand with public third-party COA verified (Aug 2026), plus 60 mg Dermial® (hyaluronic acid, collagen, elastin complex) — made in the US, sold via cross-border purchase; a stick powder taken without water
Retailer link pending
92/100
876원Based on the 3-box set, 197,000 KRW for 90 sticks
2,189원 / 3,283원
90 / 60d1 / 1.5 sticks/day
S
Rokit America NMN + Pterostilbene
250 mg/day, 99.9% purity, combined with pterostilbene (polyphenol stack) — capsule format aimed at research-style stacking
Retailer link pending
90/100
680원
1,700원 / 2,550원
30 / 20d1 / 1.5 capsules/day
A
ProHealth NMN Pro (Uthever®)
250–500 mg/day, third-party HPLC testing, sustained-release tablet. An S candidate once Self-GRAS and GLP documentation is verified
Retailer link pending
78/100
Not calculable
Not calculable
—
B
Double Wood NMN
250 mg/day, purity 97%+ (below 99%), COA published — budget tier
No COA, undisclosed purity and sourcing — a category where US market surveys report under-dosing and adulteration
10/100
Not calculable
Not calculable
—
S
92/100
EGA NMN Daily Regenerator
Shared ownership with KNI
250 mg/day, published 99.9% purity, named ROKIT NMN® ingredient brand with public third-party COA verified (Aug 2026), plus 60 mg Dermial® (hyaluronic acid, collagen, elastin complex) — made in the US, sold via cross-border purchase; a stick powder taken without water
Cost per active unit
876원/100mg
Price basis
Based on the 3-box set, 197,000 KRW for 90 sticks
Daily cost · Women 250mg
2,189원
Daily cost · Men 375mg
3,283원
Days of supply · Women / Men
90 / 60d
Servings per day
1 / 1.5 sticks
Axis scores
Effective dose
30/30
Purity & impurity testing
24/25
Manufacturing & safety certification
17/20
Raw-material grade
13/15
Information transparency
8/10
Retailer link pending
S
90/100
Rokit America NMN + Pterostilbene
250 mg/day, 99.9% purity, combined with pterostilbene (polyphenol stack) — capsule format aimed at research-style stacking
Cost per active unit
680원/100mg
Daily cost · Women 250mg
1,700원
Daily cost · Men 375mg
2,550원
Days of supply · Women / Men
30 / 20d
Servings per day
1 / 1.5 capsules
Axis scores
Effective dose
30/30
Purity & impurity testing
24/25
Manufacturing & safety certification
17/20
Raw-material grade
13/15
Information transparency
6/10
Retailer link pending
A
78/100
ProHealth NMN Pro (Uthever®)
250–500 mg/day, third-party HPLC testing, sustained-release tablet. An S candidate once Self-GRAS and GLP documentation is verified
Cost per active unit
Not calculable
Daily cost · Women 250mg
—
Daily cost · Men 375mg
—
Days of supply · Women / Men
—
Axis scores
Effective dose
26/30
Purity & impurity testing
20/25
Manufacturing & safety certification
12/20
Raw-material grade
13/15
Information transparency
7/10
Retailer link pending
B
61/100
Double Wood NMN
250 mg/day, purity 97%+ (below 99%), COA published — budget tier
Cost per active unit
Not calculable
Daily cost · Women 250mg
—
Daily cost · Men 375mg
—
Days of supply · Women / Men
—
Axis scores
Effective dose
26/30
Purity & impurity testing
14/25
Manufacturing & safety certification
10/20
Raw-material grade
4/15
Information transparency
7/10
Retailer link pending
C
10/100
Unbranded import / marketplace NMN
No COA, undisclosed purity and sourcing — a category where US market surveys report under-dosing and adulteration
Cost per active unit
Not calculable
Daily cost · Women 250mg
—
Daily cost · Men 375mg
—
Days of supply · Women / Men
—
Axis scores
Effective dose
8/30
Purity & impurity testing
0/25
Manufacturing & safety certification
0/20
Raw-material grade
0/15
Information transparency
2/10
See axis-level scores (5 axes, 100 points)
Product
① Effective dose/30
② Purity & impurity testing/25
③ Manufacturing & safety certification/20
④ Raw-material grade/15
⑤ Information transparency/10
EGA NMN Daily Regenerator
30
24
17
13
8
Rokit America NMN + Pterostilbene
30
24
17
13
6
ProHealth NMN Pro (Uthever®)
26
20
12
13
7
Double Wood NMN
26
14
10
4
7
Unbranded import / marketplace NMN
8
0
0
0
2
EGA NMN Daily Regenerator
① Effective dose
30/30
② Purity & impurity testing
24/25
③ Manufacturing & safety certification
17/20
④ Raw-material grade
13/15
⑤ Information transparency
8/10
Rokit America NMN + Pterostilbene
① Effective dose
30/30
② Purity & impurity testing
24/25
③ Manufacturing & safety certification
17/20
④ Raw-material grade
13/15
⑤ Information transparency
6/10
ProHealth NMN Pro (Uthever®)
① Effective dose
26/30
② Purity & impurity testing
20/25
③ Manufacturing & safety certification
12/20
④ Raw-material grade
13/15
⑤ Information transparency
7/10
Double Wood NMN
① Effective dose
26/30
② Purity & impurity testing
14/25
③ Manufacturing & safety certification
10/20
④ Raw-material grade
4/15
⑤ Information transparency
7/10
Unbranded import / marketplace NMN
① Effective dose
8/30
② Purity & impurity testing
0/25
③ Manufacturing & safety certification
0/20
④ Raw-material grade
0/15
⑤ Information transparency
2/10
How these are calculated
Cost per active unit = price ÷ total active content · Daily cost = cost per unit × daily dose · Days of supply = total active content ÷ daily dose
Unit costs are converted from the purchase option listed at the official retailer. Where the basis is not a single unit, that option is stated beneath the figure — costs on different bases are not directly comparable.
Days of supply is not how long an effect lasts — it is how many days one pack covers at the daily dose used here. Nor is it the number of sticks or tablets in a pack: when the daily dose exceeds one serving, a 30-stick pack lasts fewer than 30 days.
Daily dose used — Women 250mg · Men 375mg. 250 mg for women is the dose shown effective in peri-menopausal women (Science 2021); 375 mg for men is the midpoint of the 250–500 mg range used in metabolic and functional studies, chosen by KNI as the comparison basis.
All named products in this table are made in the US and sold via cross-border purchase. Named listings are limited to overseas brands and to top-tier (S/A) domestic products whose evidence — ingredient brand, certifications and test reports — is publicly verifiable. All other domestic products appear as a category. Third-party product links earn no affiliate commission. KNI and EGA share ownership and management; purchases do not change the published scoring criteria. Based on official retailer listings and published test reports · Data as of 2026-08
So which one should you choose?
To summarise the standard — 250 mg a day, purity of 99% or above with test results, certification, named sourcing, and price per 100 mg. Among the named products, two reach S grade against it.
If you want a no-water stick with skin support —
SEGA NMN Daily Regenerator876원/100mg
A 250 mg stick powder (the dose studied in women) taken without water, with hyaluronic acid, collagen and elastin alongside. Daily cost runs higher than single-ingredient options.
If you want research-style stacking —
SRokit America NMN + Pterostilbene680원/100mg
A polyphenol stack with pterostilbene and a deep raw-material verification record (Self-GRAS, GLP). It is a capsule, so it needs water.
Whichever you choose, it should now be clear what to look for on the label.
Conflict-of-interest disclosure: KNI and EGA share ownership and management. EGA products are included in our NMN comparisons. We apply the same published criteria to all products; please review the evidence behind EGA's score.
Strengths and limits, product by product
S
EGA NMN Daily Regenerator
Shared ownership with KNI
250 mg/day, published 99.9% purity, named ROKIT NMN® ingredient brand with public third-party COA verified (Aug 2026), plus 60 mg Dermial® (hyaluronic acid, collagen, elastin complex) — made in the US, sold via cross-border purchase; a stick powder taken without water
92/100
Criteria met
+Meets the 250 mg dose studied in women in a single daily serving
+99.9% purity published, with a public third-party COA and per-lot content verification (verified Aug 2026)
+Named ROKIT NMN® ingredient brand with published Self-GRAS, GLP toxicology and cGMP (FDA-registered facility) documentation
+Stick powder taken without water, with 60 mg Dermial® (hyaluronic acid, collagen, elastin) alongside NMN
Unverified or unmet
−It is a complex formulation — if you want NMN alone, other options exist
−At the verified price, the daily cost runs higher than comparable overseas single-ingredient S-grade products
−The patent number for the secondary ingredient (Dermial®) is not printed on the sales page — the reason it does not score full marks on the raw-material axis
S
Rokit America NMN + Pterostilbene
250 mg/day, 99.9% purity, combined with pterostilbene (polyphenol stack) — capsule format aimed at research-style stacking
90/100
Criteria met
+Deep raw-material verification history (Self-GRAS, GLP)
+Purity published at 99.9%
+Polyphenol stack design
Unverified or unmet
−A complex product — the pterostilbene is wasted cost if you do not want it
−Capsule format requires water
A
ProHealth NMN Pro (Uthever®)
250–500 mg/day, third-party HPLC testing, sustained-release tablet. An S candidate once Self-GRAS and GLP documentation is verified
78/100
Criteria met
+Uses a clinically studied ingredient brand (Uthever®)
+Publishes third-party HPLC results
Unverified or unmet
−Price pending confirmation — per-100 mg cost not calculable (listed around $50–70/month)
−Dose varies by line, so conversion is needed
B
Double Wood NMN
250 mg/day, purity 97%+ (below 99%), COA published — budget tier
61/100
Criteria met
+Publishes a COA, so verification is possible
+Meets the 250 mg studied dose
+Accessible price
Unverified or unmet
−Purity of 97%+ falls short of the 99% standard
−No named ingredient brand
C
Unbranded import / marketplace NMN
No COA, undisclosed purity and sourcing — a category where US market surveys report under-dosing and adulteration
10/100
Criteria met
—
Unverified or unmet
−Purity and testing undisclosed, so verification is impossible
−Headline-number marketing makes daily dose hard to convert
What was this scored on?
① Effective dose 30
Does the actual daily intake reach the dose range used in human studies — not the number in the product name?
② Purity & impurity testing 25
Published purity figures plus third-party COA, with verifiable impurity and heavy-metal testing.
③ Manufacturing & safety certification 20
cGMP/FDA-registered facilities, ingredient-specific certifications (Self-GRAS, NSF), and toxicology data (GLP).
④ Raw-material grade 15
Named ingredient brand — whether a verified supplier such as Creapure®, Uthever® or Setria® is used.
⑤ Information transparency 10
Full ingredient and dose disclosure, convertible labelling, and claims free of exaggeration.
Conflict-of-interest disclosure: KNI and EGA share ownership and management. EGA products are included in our NMN comparisons. We apply the same published criteria to all products; please review the evidence behind EGA's score. KNI grades reflect our own published criteria and are not a government or accreditation-body certification.
