04/23/2026
Gwyneth Paltrow’s longevity routine is making headlines, and the science is actually worth talking about.
In a recent interview, Paltrow shared that her current stack includes NAD+, B12, and peptides. Here’s what the research actually says about each one.
NAD+ is a coenzyme that plays a central role in cellular energy production, DNA repair, and resilience. Levels decline significantly with age, contributing to slower recovery and reduced mitochondrial efficiency. Restoring NAD+ pathways through injections or precursors like NMN and NR has become one of the most studied areas in longevity science.
B12 is foundational and more commonly deficient than most people realize, often without any obvious symptoms. Absorption drops with age, and even subclinical deficiencies have been linked to accelerated brain degeneration. Injectable B12 bypasses the gut entirely, making it one of the most practical precision tools in any longevity protocol.
There are hundreds of peptides being discussed today, but only a small number are backed by clinical research and appropriate medical oversight, which makes selection critical. Sermorelin, one of the only peptides that can be legally compounded and prescribed for age-related growth hormone decline, has shown strong benefits for recovery, body composition, and cognitive function. Glutathione, the body’s master antioxidant, declines significantly with age and its depletion drives inflammation, brain fog, and accelerated cellular aging.
The goal is not to copy someone else’s protocol. It is to understand your own biology well enough to know what you actually need.
Take our Longevity Quiz at the link in bio to find out where to start.
(For educational purposes only)