L-DOPA – Nootropic With Testosterone & HGH Boosting Properties

Nootropic HGH and L-DOPA

L-DOPA is mostly used as a nootropic and the treatment of parkinsons.

More is being understood about its testosterone and HGH boosting properties.

A well rounded supplement recommended for lifters.

What is L-DOPA?

L-DOPA is an amino acid that used in humans as a precursor to the neurotransmitters dopamine, noradrenaline and adrenaline. These class of neurotransmitters are known as catecholamines. Itt is synthesised from the amino acid L-tyrosine. Because of L-DOPA’s ability to increase dopamine concentrations in synapses, it is commonly used to treat Parkinson’s disease to alleviate the negative effects associated with low dopamine. More recently has been discovered about a connection betweem HGH and L-DOPA, in addition to other hormones like testosterone.

As a supplement it is often used by a nootropic, with the following benefits:

  • Lift mood
  • Ease stress
  • Improve libido
  • Increase testosterone
  • Decrease Prolactin


It can either be supplemented directly or via the herb Mucuna Pruriens which contains L-DOPA. Therapeutic doses of L-DOPA range from 100mg to 900mg but experts recommend a dose of 250mg to 500mg. It is recommended that it is cycled to avoid a reduction in dopamine in the long term. Side effects include:

  • Intestinal upset
  • Arrhythmia
  • Hair loss
  • Hallucinations
  • Sleepiness
  • Excessive Libido
  • Compulsive behaviour
  • Confusion

However, staying in the recommended doses should avoid this. The online testosterone boosting community often use Mucuna-Pruriens as a principle herb to boost their T as this study (1) suggests.


Does L-DOPA increase HGH?

L-Dopa has been indicated to potentially boost HGH.

A study (1) found; Oral administration of L-dopa (0.5 g) caused a significant increase in both plasma hGHRH-LI and GH levels in normal subjects, and the plasma hGHRH-LI peak slightly preceded or coincided with that of plasma GH in individual subjects”. 

These sort of results have been seen in other studies (2).

The Verdict

There is some limited evidence to suggest that L-Dopa may increase HGH. I

f you are looking for a nootropic and testosterone booster in addition to increased HGH levels then this is a sound choice for a supplement.





2)Boden G, Lundy LE, Owen OE. Influence of levodopa on serum levels of anterior pituitary hormones in man. Neuroendocrinology. (1972)

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