Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Head-to-head comparison of Cardarine (GW-501516) and NAD+ — mechanism, side effects, legal status, and pricing.
Cardarine (GW-501516) is a synthetic small-molecule PPARδ agonist — not a SARM and not a peptide, despite gray-market marketing that groups it with SARMs. Developed by GSK and taken into human lipid trials, its clinical development was discontinued around 2007 after rodent carcinogenicity findings. It has no regulatory approval anywhere, is WADA-prohibited at all times, and is sold only as a gray-market research chemical.
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in all living cells, not a peptide. It is classified here alongside peptides for user convenience in the anti-aging / metabolic category. NAD+ plays a central role in cellular energy metabolism and redox reactions and is studied for its involvement in mitochondrial function, DNA-damage signaling via sirtuins and PARPs, and age-associated metabolic decline. IV NAD+ is not FDA-approved for any clinical indication; it is administered off-label through compounding pharmacies and functional-medicine clinics with limited rigorous outcome data.
Cardarine (GW-501516)
NAD+
Category
Legal Status
Mechanism
Side Effects
COA-verified vendors · trust score ≥70 required · single-vial price — bulk/bundle deals may be lower
Cardarine (GW-501516)
NAD+
COA corpus from Disclosed Labs — independently tested batches only.
Cardarine (GW-501516)
2
COAs
99.7%
Avg purity
1
Labs
NAD+
146
COAs
99.4%
Avg purity
15
Labs
Completed GSK-sponsored human trials in low-HDL/dyslipidemia subjects (2.5–10 mg/day, 12 weeks) improved lipids (HDL-C +16.9%, triglycerides −16.9%, LDL −7.3%; Sprecher et al., 2012). GSK halted development around 2007 after a 2-year rodent carcinogenicity study reported tumors across multiple organs; a 2019 mouse study found GW-501516 accelerated colitis-associated colorectal cancer. A published human case report documented severe rhabdomyolysis and hepatotoxicity from self-administration. Never approved for any indication; not a peptide.
The strongest human evidence for raising circulating NAD+ comes from oral-precursor trials. A randomized, double-blind, placebo-controlled study of nicotinamide riboside combined with pterostilbene (NRPT) showed sustained dose-dependent increases in whole-blood NAD+ over 8 weeks in healthy adults (Dellinger et al., npj Aging and Mechanisms of Disease, 2017). A Yoshino/Baur/Imai review summarizes the biology and emerging therapeutic potential of NR and NMN, including preclinical healthspan data in aged mice (Cell Metabolism, 2018). Direct IV NAD+ has only small pilot pharmacokinetic data: Grant et al. infused 750 mg over 6 hours in 8 healthy men and documented altered plasma and urine NAD+ metabolome without clinical-outcome endpoints (Frontiers in Aging Neuroscience, 2019). No adequately powered RCTs support IV or SubQ NAD+ for anti-aging, cognition, addiction, or Parkinson's disease; clinic marketing claims outrun the published outcome evidence.
Cardarine (GW-501516) and NAD+ are both in the Metabolic category and may have overlapping mechanisms. Researchers should review both profiles carefully, understand the mechanisms of action, and monitor the relevant biomarkers when combining compounds in the same class. As always, consult a licensed healthcare provider before making any decisions about combining research compounds.
This platform provides informational tools only, not medical advice. This comparison is for educational purposes only. Consult a licensed provider.
Contraindications
Lab Testing
Disclosed Labs