The Journal
Formulation thinking, ingredient deep-dives, and the research behind what we put in.
Cortisol and sleeplessness are locked in a two-way relationship that most sleep advice glosses over. Elevated cortisol may disrupt sleep architecture — and disrupted sleep may, in turn, keep cortisol...
ReadPyridoxal 5-phosphate — P-5-P for short — is the biologically active coenzyme form of vitamin B6. Most cheap supplements use pyridoxine hydrochloride instead, which your...
Creatine is one of the most studied supplements in existence — and the evidence for men over 40 is more interesting than most people realise....
Vitamin C (ascorbic acid) is an essential water-soluble vitamin — meaning your body cannot make it, so you have to get it from food or...
Cortisol follows a strict daily rhythm — low at night, peaking roughly 30 minutes after waking. When that pattern inverts and you get a cortisol...
Vitamin E is a fat-soluble antioxidant with a legitimate evidence base — but most vitamin E drinks on the market dose it poorly, pair it...
Taurine is a sulphur-containing amino acid found in high concentrations in the brain, heart, skeletal muscle and retina. Unlike most amino acids, it isn't used...
Sleep and cortisol are locked in a bidirectional relationship that most people underestimate. Cortisol follows a strict 24-hour rhythm — peaking roughly 30 minutes after...
Ashwagandha is probably the most studied adaptogen in clinical literature right now. A 2024 systematic review and meta-analysis covering multiple randomised controlled trials found statistically...
