SINGAPORE, February 6, 2025 – A Singapore-based NMN supplement seller has made public its third-party laboratory test results, which show the product contains 23% more active ingredient than stated on the label.

According to test results from SGS Testing & Control Services Singapore Pte Ltd, the company's NMN supplement delivers 6,150mg of nicotinamide mononucleotide per 30-capsule pack, compared to the 5,000mg stated on product packaging.

Test Results and Methodology
The SGS laboratory report (reference: ASH26-0006210-01) used High-Performance Liquid

Chromatography (HPLC) analysis to determine NMN concentration. Key findings include:
- NMN concentration measured at 57.01% by weight
- 205mg of NMN per capsule (versus theoretical 167mg based on label)
- Lead, mercury, and cadmium levels below detection thresholds
- Bacterial counts measured at less than 10 colony-forming units per gram (regulatory limit: 100,000)
- No detection of E. coli, Salmonella, Staphylococcus aureus, or Pseudomonas aeruginosa

Industry Context
The disclosure follows a March 2024 research study in Singapore, which found that several NMN supplements available in local markets did not meet their stated label claims. That study identified issues including underdosing and questions about manufacturing quality.
The company states it tests each imported batch and publishes results on its website. A previous batch tested in May 2024 showed 18% more content than labeled, indicating batch-to-batch variation within manufacturing tolerances.

Manufacturing and Testing Approach
Each capsule weighs 360mg in total. At a 57.01% NMN concentration, this yields 205mg of active ingredient per capsule. With 30 capsules per pack, the total NMN content measures 6,150mg.

The company sources its product from GMP-certified manufacturing facilities in Japan before conducting independent verification testing in Singapore. Testing costs range from SGD $800 to $1,200 per batch, according to company representatives.

The testing protocol includes three components:
- HPLC analysis for NMN quantification
- ICP-MS screening for heavy metals (lead, mercury, arsenic, cadmium)
- Microbiological testing following USP 43 standards

Regulatory Framework
Singapore's Health Sciences Authority (HSA) maintains regulatory limits for heavy metals in health supplements. The test results show levels well below these thresholds, with three of four heavy metals tested below laboratory detection limits.

All microbiological tests met United States Pharmacopeia (USP) Chapter 43 standards, which are commonly applied to pharmaceutical products.
Data Accessibility

The company has published SGS test certificates on its website at https://nmnsupplements.com.sg/quality-safety/ without registration requirements. Representatives indicate they plan to update the page as new batch results become available.

The product is currently distributed in Singapore, Malaysia & South East Asia through the company's e-commerce platform.

About NMN
Nicotinamide mononucleotide (NMN) is a compound studied for its potential role as a precursor to NAD+, a molecule involved in cellular metabolism. The supplement category has grown in Singapore and regional markets over recent years.

Contact Information:
NMN Supplements Singapore
Email: [email protected]
Website: https://nmnsupplements.com.sg
Phone: +65 8792 4733