Precursor TST

Testosterone begins to decline after age 30. Aromatase can convert this hormone into an inactive hormone (a process called aromatisation) or into oestrogen, causing a loss of physical and mental vitality in men.

To counter these effects, we have collected natural elements capable of promoting increased endogenous secretion of testosterone, while optimising its health benefits.

Testosterone is the male hormone par excellence, it helps to develop muscle mass and promotes stamina, charisma and competitiveness. Linked to male physical and psychological development, it is a hormone coveted for its benefits. Optimal secretion of testosterone ensures good health, a powerful immune system, physical strength and above-average mental function.

A dose of the new improved Precursor TST provides 50% NRVs* of vitamin B6, Magnesium and Zinc. It has been proven that the combination of these three elements positively increases testosterone in people who perform intense physical activity¹. Vitamin B6 contributes to regulate hormonal activity², and magnesium and zinc play an important role in the synthesis of testosterone: reduced production of this hormone has been attributed to a lack of Zinc³, and magnesium has been shown to increase the presence of biologically active testosterone¹.

In addition to these minerals and vitamin B6, our Precursor TST also contains extracts of plant origin (Tribulus terrestris, Trigonella foenum-graecum, Serenoa repens, Coleus forskohlii, Passiflora incarnata y Trifolium pratense) which guarantee maximum efficiency:

The fruit of Tribulus terrestris contains saponins such as protodioscin. Studies have connected the presence of this molecule to increases in the levels of testosterone and improvement in sexual activity⁴.
Among other components, Fenugreek seeds (Trigonella foenum-graecum) contain, flavonoids, alkaloids (Trigonelline), coumarin, carbohydrates and saponins. An increase in free testosterone levels and its bioavailability was observed following consumption⁸.
The fruit of saw palmetto (Serenoa repens) is rich in fatty acids and has been used for benign hyperplasia of the prostate¹¹ since some of those fatty acids inhibit the 5-alpha-reductase enzyme which is implied in the metabolism of steroids.
The root of Coleus forskohlii contains forskolin, a diterpene that activates the adenylate cyclase enzyme, therefore increasing levels of cyclic AMP¹³, a molecule that intervenes in different processes and raises testosterone levels when increased¹⁴.
Passion flower (Passiflora incarnata) is a plant very well-known for its anxiolytic and relaxing properties. These properties are due to its flavonoid content, which has shown a similar effect to that of benzodiazepines¹⁶.
Red clover (Trifolium pratense) is rich in isoflavones, molecules with an oestrogenic activity. The inhibiting effect of the aromatase enzyme has been attributed to the biochanin A isoflavone¹⁹.

*NRVs: Nutrient Reference Value

EXTRACT NAME: Dry extract of  tribulus standardised to contain 40% in saponins
SCIENTIFIC NAME: Tribulus terrestris L.
PART USED: Fruit
PROPERTIES:
•    Contains steroidal saponins with aphrodisiac effects⁴.
•    Improves erectile function⁵ by increasing relaxation of the corpora cavernosa and encouraging the release of nitric oxide⁵.

EXTRACT NAME: Dry extract of fenugreek standardised to contain 50% in saponins
SCIENTIFIC NAME: Trigonella foenum-graecum L.
PART USED: Seeds
PROPERTIES:
•    Increases libido⁷.
•    Increases overall testosterone levels and bioavailability⁸.
•    Improves strength and body composition (decreased percentage of fat) in athletes who do resistance training⁹.

EXTRACT NAME: Dry extract of saw palmetto standardised to contain 20% in fatty acids
SCIENTIFIC NAME: Serenoa repens (W. Bartram) Small
PART USED: Fruit
PROPERTIES:
•    Potential use for alopecia due to its inhibiting effect on 5-alpha reductase¹⁰.
•    Use for fight against the symptoms of benign hyperplasia of the prostate¹¹.

EXTRACT NAME: Dry extract of coleus standardised to contain 10% in forskolin
SCIENTIFIC NAME: Coleus forskohlii (Poir.) Briq.
PART USED: Root
PROPERTIES:
•    Forskolin, through the activation of the adenylate cyclase enzyme, stimulates the production of cyclic AMP, which promotes vasodilatation¹¹ and an increase in testosterone production^{13, 14}.

NAME OF EXTRACT: Dry extract of passionflower standardised to contain 3.5% in vitexin
SCIENTIFIC NAME: Passiflora incarnata L.
PART USED: Aerial parts
PROPERTIES:
•    Anxiolytic effect^{15, 16}.
•    Inhibition of aromatase enzyme thanks to flavonoid action¹⁷.
•    Aphrodisiac properties¹⁸.

NAME OF EXTRACT: Dry extract of red clover standardised to contain 8% in isoflavones
SCIENTIFIC NAME: Trifolium pratense L.
PART USED: Aerial parts
PROPERTIES:
•    The biochanin A enzyme inhibits the activity of aromatase enzyme¹⁹.
•    Isoflavones regulate the activity of the aromatase and 5-alpha reductase enzymes²⁰.