NAD+ and anti-aging TikTok claims: what the research actually supports

A recent TikTok video from Holistic GLP Girly asks, “Where are my anti-aging & longevity girlies at?!” and goes on to describe NAD+ as one of her favorite ways to support cellular energy and recovery “from the inside out.” The caption includes hashtags like #NAD, #NADPeptide, and #EnergySupport, and she adds a disclaimer that it’s not medical advice. The implied claim is that NAD+ supplementation can help with anti-aging and longevity by boosting cellular energy and aiding recovery.

What the research neighborhood actually covers

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell and is central to energy metabolism and cellular signaling. Research on NAD+ has focused on its role in mitochondrial function, DNA repair (via sirtuins and PARPs), and its decline with age. Studies in animal models have shown that boosting NAD+ levels can improve markers of metabolic health and extend lifespan in some organisms. Human trials, while still early, have explored NAD+ precursors like nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) for effects on muscle function, insulin sensitivity, and blood pressure. However, direct evidence that NAD+ supplementation slows human aging or provides a noticeable energy boost is not yet conclusive.

Limits, missing context, and what a 15-second clip cannot show

The TikTok clip presents NAD+ as a simple solution for feeling “like ME again,” but it omits several critical points. First, the research on NAD+ is largely preclinical; human data are limited and mixed. Second, the form and route of administration matter—oral precursors (NR, NMN) have different bioavailability than injectable NAD+, and the clip does not specify which form she uses. Third, the claim of “cellular energy” is a simplification: NAD+ is involved in energy production, but whether raising NAD+ translates to a subjective increase in vitality is not established. Finally, the clip’s disclaimer (“not medical advice”) is appropriate, but viewers may still interpret it as a recommendation, especially given the hashtag #NADPeptide—which is technically inaccurate, as NAD+ is not a peptide.

How this maps to named research compounds

In the context of research-use peptides and related compounds, NAD+ is a distinct molecule from the peptide catalog items. While the clip mentions “NAD peptide,” the catalog lists NAD+ as a standalone compound, not a peptide. For researchers exploring energy and longevity pathways, NAD+ is often studied alongside other compounds that influence cellular metabolism, such as MOTS-c (a mitochondrial-derived peptide) and SS-31 (Elamipretide), which target mitochondrial function. However, the TikTok clip does not reference these, so they are not directly relevant here. The key point is that NAD+ is a coenzyme, not a peptide, and its research context is different from that of peptide hormones like BPC-157 or GHK-Cu.

Research-use caveat

All compounds mentioned in this article are intended for research use only, not for human consumption. NAD+ and related precursors are not approved by regulatory agencies for anti-aging or energy support. Any discussion of benefits is based on preclinical or early clinical studies, and individual responses can vary. Researchers should consult primary literature and follow institutional guidelines when designing studies.