Essential Oils & Herbs
Eurycoma longiforlia, also called Longjack and Tongkat Ali is a preparation of a root, usually a water extract. It has horrible taste but some very favorable articles and testimonies. It probably is best to trial it separately from other agents, but many companies combine it with other agents for their trademarked product.
Effect of Eurycoma longifolia standardised aqueous root extract–Physta® on testosterone levels and quality of life in ageing male subjects- a randomised, double-blind, placebo-controlled multicentre study.2021
Efficacy of Labisia pumila and Eurycoma longifolia standardised extracts on hot flushes, quality of life, hormone and lipid profile of peri-menopausal and menopausal women-a randomised, placebo-controlled study.2020