Caffeine is a xanthine alkaloid that has a psychoactive stimulant effect. It may be found in many plant species but the main source of caffeine is coffee or cocoa bean. It is a potent stimulant that causes the heart rate to increase, muscles to tighten up, and the pupils to dilate. It activates the adrenaline that gives a boost of energy. It also reduces the symptoms of asthma. It helps open up the airways for ease of breathing. It increases the metabolism and breaks down fats. It also helps increase muscle strength. It also prevents chronic fatigue syndrome. Caffeine helps ease headache. It also reduces the risk of diabetes, Parkinson’s disease, and colon cancer.

N-Acetyl-L-Tyrosine relates to the supplementation of tyrosine. The N-Acetyl-L-tyrosine is converted into L-tyrosine. N-Acetyl-L-tyrosine is useful in treating depression and mood problems. This is also of immense use in treating blood pressure, skin and hair color as well as Parkinson’s disease. N-Acetyl-L-tyrosine gets converted into the body and is soluble in water. N-Acetyl-L-tyrosine serves as one of the significant supplement to increase the tyrosine levels present in the body because the substances that stay undissolved are un-absorbed by the digestive tract. This contains B-6 vitamin and this is a must for the synthesis for neurotransmitter. N-Acetyl-L-tyrosine is prohibited by the FDA regulations to be appropriate for medical treatment. N-Acetyl-L-tyrosine, in the recent research has come to conclude that it is effective for medical conditions. Even mild stress causes neurotransmitter deficiency and this ends up in sullen moods or depression. However, N-Acetyl-L-tyrosine is useful in restoring skin pigment and also is effective in hair darkening.

Vitamin B12 is a water soluble vitamin and is one of the 8 B vitamins. It has the chemical formula C63H88CoN14O14P. In the absence of Vitamin B12, the brain and the nervous system will not be able to function properly. It also plays a key role in the formation of blood. Vitamin B12 was discovered from its relation to the ailment pernicious anemia. Plants and animals are not capable of synthesizing VitaminB12; the enzymes required for this purpose are found only in bacteria. Vitamin B12 deficiency in human beings is due to its complex human physiology. It is available singly or in combination with other supplements.

Yohimbine HCL is the active chemical component of the medicinal herb Pausinystalia yohimbe. It is a stimulant drug and is reportedly an aphrodisiac. According to the National Institute of Health (NIH), the standardised form of this chemical is Yohimbine hydrochloride (HCL) and is available as a prescription drug in the United States. Research has shown that yohimbine hydrochloride is effective as a treatment for male impotence. However while yohimbine HCL has been used as a prescription medicine to treat erectile dysfunction controlled studies suggests conflicting results. Apart from male sexual dysfunction, yohimbine HCL has also been used to treat the side effects of antidepressants like female hyposexual disorder etc. It is also used to recall memories in the treatment of post-traumatic-stress-disorder. While there are several uses for yohimbine HCL, there are several side effects too. These include high blood pressure, insomnia, panic attacks, hallucinations, headaches, renal failure, heart disease etc.