exemple Pamplemousse

Latin name :

Citrus paradisi

Common name :


Family :


Origin :

Southeast Asia, Indonesia, Malaysia

Part of the plant used :




A red-fleshed citrus fruit with an orange rind, the grapefruit is native to South-East Asia and was introduced to Europe in the 17th century. It belongs to the Citrus genus, like the orange and the lemon.

Grapefruit contains vitamin C, which is an antioxidant and beneficial for the immune system. This fruit is particularly well known for its cardiovascular benefits. Grapefruit peel also contains bioflavonoids, such as hesperidin and naringin. These two molecules have a prebiotic role that helps the bacteria of the microbiota to proliferate, among which are those capable of producing butyrate.

Butyrate is a short-chain fatty acid (SCFA) involved in the synthesis of mucus, a viscous fluid that protects the intestinal mucosa. Mucus prevents the adhesion of pathogenic bacteria to intestinal cells. Mucus and the intestine are considered to be a defence barrier for the immune system. Grapefruit is therefore beneficial to both the immune and digestive systems.


The bioflavonoids in grapefruit help maintaining intestinal health and having a beneficial effect on immunological protection. The gut is the most important part of the immune system. As such, it is important to take care of it.

THERASCIENCE special features 

THERASCIENCE Laboratory has selected the active ingredient MicrobiomeX®, a registered extract of grapefruit and orange, standardised in hesperidin and naringin, with clinically proven efficacy in supporting the immune system and improving the intestinal defences.

Scientific publications

Grapefruit is the subject of over 1,100 scientific publications.

The selection of our active ingredients is constantly guided by numerous scientific publications, based on randomised double-blind clinical studies versus placebo, in humans, guaranteeing a real scientific value. The doctors, pharmacists and engineers at THERASCIENCE Laboratory have selected some of these publications for you :

Our products based on Grapefruit

  1. €19.00
  2. €49.00
Therascience : 4,6/5 sur 186 avis.
Secure payment
Customer service 5 days a week
Satisfied or exchanged
Quality guarantee