research shows no additional benefit above 1 mg daily Important: Doses above 1 mg (1,000 mcg) daily showed no additional metabolic benefits in clinical research
References & further reading PubMed 34324435 MDPI 2876 Quality in Sport 70818 Springer s00441-019-03016-8 ScienceDirect S875632829800180X DOI 10.2147/DDDT.S82030 MDPI 291 Nature s41598-026-55449-1 Springer s12178-025-09990-7 This product is intended strictly for in-vitro laboratory research and analytical reference use
Last reviewed: May 14, 2026 Last updated: May 14, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
Vitamin B12 deficiency in over 16s - Rationale and impact (NG239)
Whether it produces the described outcomes in individual consumers is subject to the individual results variability that applies to all dietary supplements
By September I hit 169 pounds and honestly my skin looks way better than friends who lost similar weight without peptide support
