Delta-tocotrienol is a specific form of Vitamin E found in certain plant oils and grains. While Vitamin E (as a group) is sometimes included in supplements marketed for hair health, the direct scientific evidence supporting delta-tocotrienol specifically for hair loss or hair thinning is limited. Most research on Vitamin E and hair relates to its antioxidant properties, which are thought to reduce oxidative stress that may contribute to hair follicle damage. One small randomized controlled trial (Beoy et al., 2010) found that tocotrienol supplementation improved hair count in volunteers with hair loss, but the study included a mix of tocotrienol isomers (alpha, beta, gamma, delta) and did not isolate delta-tocotrienol effects.

Aside from this, robust human clinical data are lacking, and most available studies are either animal-based or in vitro. There is some evidence that oxidative stress plays a role in certain types of alopecia, and Vitamin E's antioxidant action may offer theoretical benefits, but this has not been definitively proven for delta-tocotrienol. Overall, while there is some emerging scientific interest and plausible mechanisms, the evidence currently supporting the use of delta-tocotrienol for hair loss or thinning is weak and based on limited data.