Guava also called Psidium guajava. Belongs to the Myrtaceae family and is an important fruit in tropical areas such as India, Indonesia, Pakistan, Bangladesh and South America. (see ref. N° 1). The ethnobotanical use of this plant is wide. Due to its astringency, the leaves are used in skin diseases, diarrhea and other stomach ailments. It has been used as a hemostatic and antiseptic. (See ref. N° 2)
It has antimicrobial, healing, hypoglycemic and spasmolytic action. It also contains antioxidant, hepatoptotector, antiallergic, cytotoxic genotoxic, cardiotonic, anti-inflammatory, antidiarrheal and anticatarrhal and others. 7 (See ref. N° 2)
The Guava leaves
Guava leaves have been studied for their health benefits which are attributed to their large amounts of phytochemicals, such as quercetin, avicularin, apigenin, guaijaverin, kaempferol, hyperin, myricetin, gallic acid, catechin, epicatechin, chlorogenic acid, gallate epigallocatechin. and caffeic acid.
Guava leaf: properties and benefits
Guava leaf extracts (GL) have been studied for their biological activities, including anticancer, antidiabetic, antioxidant, antidiarrheal, antimicrobial, lipid-lowering, and hepatoprotective activities. Considering the phytochemical profile and beneficial effects, they can potentially be used as an ingredient in the development of functional foods and pharmaceuticals. (See ref. N° 3)
Pharmacological research both in vitro and in vivo has been widely used to demonstrate the potential of leaf extracts for the co-treatment of different ailments with high prevalence worldwide, supporting traditional medicine in cases such as diabetes mellitus, cardiovascular diseases. cancer and parasitic infections. Furthermore, the biological activity has been attributed to the bioactive composition of the leaves. The phenolic compounds in guava leaves have been attributed with regulating blood glucose levels. (See ref N°2)
Guava leaves have nutrients that allow them to be useful by offering health benefits. One of the reasons why the one that is good for your hair is its high content of folic acid. This helps hair growth and health. Guava leaves are essential to prevent hair loss, especially when used continuously to care for the scalp.

How to use guava leaf for hair growth?
Ingredients:
- 10 grams of Guava Leaves (5 leaves of average size).
- 1 Liter of potable water.
Procedure:
- Boil the liter of water.
- Add the Guava Leaves.
- Boil for 5 minutes and turn off the heat.
- let it cool.
- Apply to hair from root to tip.
Guava leaf is effective for dandruff and split ends.