Summary
Dave Asprey interviews pharmacist Nayan Patel about a breakthrough transdermal delivery system for glutathione that uses sugar-based dextrin technology to bypass the skin's fat layer entirely, sending compounds through water channels directly into cells within about one minute. Patel explains that traditional glutathione delivery (oral, liposomal, IV) gets broken down and must be reassembled by the body, creating delayed effects, while his topical spray achieves equal or higher intracellular levels than an IV -- confirmed by MRI brain scans showing glutathione hot spots in the brain after application. Asprey connects glutathione to his long-standing advocacy of pharmaceutical nicotine as a cognitive enhancer, arguing that anyone using nicotine or other compounds that increase neuronal metabolic activity should pair them with glutathione to buffer the resulting oxidative stress. Patel discusses glutathione's role as a master immunological modulator, NAD-sparing molecule, and mitochondrial protector. They explore how reducing oxidative stress enables mitogenesis, supports sirtuin longevity pathways, and may improve emotional resilience. The episode also covers proper dosing (4 sprays twice daily, max 12-18 sprays for high need), stacking with vitamin C, vitamin E, and CoQ10, and early work with professional athletes showing improved exercise tolerance and potential TBI protection.
Key Points
- A novel transdermal glutathione delivery uses dextrin sugar technology through the skin's water channels, bypassing the fat layer and achieving intracellular levels equal to or higher than IV within one minute
- MRI brain scans confirm the topical spray gets glutathione across the blood-brain barrier, unlike delayed results from IV or liposomal forms
- Glutathione is an NAD-sparing molecule -- reducing oxidative stress preserves available NAD, supporting sirtuin longevity pathways and mitogenesis
- Dave Asprey recommends pairing pharmaceutical nicotine with glutathione because nicotine increases neuronal metabolic activity and oxidative byproducts that glutathione can buffer
- Professional NFL and NHL athletes using glutathione report better exercise tolerance and less lactic acid buildup, with potential TBI protection by reducing reactive oxygen species after head impacts
- Exogenous glutathione does not trigger negative feedback on endogenous production because peptide synthesis (unlike hormones) has no pituitary-mediated suppression mechanism
- Standard dose is 4 sprays twice daily; exceeding 16-18 sprays can trigger Herxheimer reactions including headaches, fatigue, rashes, and diarrhea from too-rapid detoxification
- Stack glutathione with vitamin C, vitamin E, or CoQ10 to recycle oxidized glutathione (GSSG) back to its reduced active form
Key Moments
Pharmaceutical nicotine can prevent early-onset Alzheimer's according to Vanderbilt research
Dave Asprey references his interview with a Vanderbilt University professor confirming that pharmaceutical nicotine (not smoking) can reverse or prevent early-onset Alzheimer's, citing research going back to 1986. He emphasizes using sprays, gum, patches, or lozenges at low doses.
"After I interviewed a professor from Vanderbilt University, he said, pharmaceutical nicotine, not smoking, can reverse or prevent early-onset Alzheimer's disease. And since 1986, there's been a bunch of papers."
Nicotine increases oxidative stress in neurons -- pair it with glutathione
Asprey explains that nicotine mildly increases reactive oxygen species in neurons, which can be hormetic but warrants buffering with glutathione, especially with daily use. He argues that any cognitive enhancer that speeds up the nervous system should be paired with glutathione to protect against metabolic exhaust.
"Even then, it mildly increases reactive oxygen species in your neurons, which isn't necessarily a bad thing because that can be a hormetic signal. But if you're using it every day the way I do, having a little bit of extra glutathione in your body, especially in your liver, is a really good idea, as well as in your brain."
Nicotine as a foundational nootropic stack ingredient for over a decade
Asprey reveals he has advocated pharmaceutical nicotine as a cognitive enhancer in every book since the Bulletproof Diet, always pairing it with caffeine. He argues that increasing neuronal metabolic activity with nicotine demands more mitochondrial output and produces more oxidative byproducts, making glutathione essential for anyone using cognitive enhancers.
"Every one of my books after, I think after the Bulletproof Diet was always caffeine and a low dose of nicotine because it's such a powerful nootropic."
