5-HTP (L-5 Hydroxytryptophan)
5-HTP is naturally occurring amino acid and the raw material the body uses to make serotonin — a brain chemical necessary for positive mood, healthy sleep, and appetite. Research has shown that when levels of 5-HTP rise, so do levels of serotonin. Several double-blind, placebo-controlled human trials have found 5-HTP can help support a positive mood, reduce appetite, and enhance weight loss.*
Relora®
Relora is a proprietary blend of standardized extracts of magnolia and phellodendron bark. It contains the calming compounds berberine and honokiol and may alleviate symptoms of occasional stress and stress-related overeating by reducing levels of the stress hormone coritsol.* Cortisol causes weight gain by increasing both appetite and fat formation, so a reduction in this hormone helps support weight loss efforts in two ways.
Rhodiola root extract
Rhodiola rosea (also called golden root) is a plant that grows in cold regions across the world. Rhodiola is an adaptogen, meaning it helps the body adapt to various stressors. It supports a positive mood by increasing levels of serotonin and other neurotransmitters such as norepinephrine and dopamine, helping them cross the blood-brain barrier, and decreasing MAO (monoamine oxidase), which degrades these chemicals.*
Vitamin D3 (cholecalciferol)
Vitamin D is often called the “sunshine vitamin” because the body can synthesize it when sunlight exposure is adequate. However, researchers have discovered that vitamin D insufficiency is surprisingly common, affecting as much as 70 percent of the population. Vitamin D is a great multi-tasker: it strengthens bone by aiding calcium absorption, modulates immune function, protects prostate cells, and boosts brain chemicals needed for positive mood.* Vitamin D3 is better absorbed than vitamin D2.*
Vitamin D
Vitamin D has been produced by life forms for over 750 million years. In humans, vitamin D is vitally important for the development, growth, and maintenance of a healthy body, beginning in the womb and continuing throughout life. Vitamin D's metabolic product, 1,25-dihydroxyvitamin D (calcitriol), is actually a type of natural hormone that is the key which unlocks binding sites on the human genome, our DNA. The human genome contains more than 2,700 binding sites for calcitriol; those binding sites are near genes involved in virtually every known major disease of humans.
Source: http://www.vitamindcouncil.org/about-vitamin-d/what-is-vitamin-d