Triphala churna is a herbal powder ‘tri’ is three,’ phala’ means fruit. it is made of three fruits.
Its usage:

1. Triphala is a powerful source of anti oxidants.
   
2. It helps to calm Kapha and Pitta
3. It is used regularly in patients having pre diabetes.
4. It is also used in the treatment for diabetes, due to its rich anti oxidant property.
5. Water decoction  /  Kashaya prepared with Triphala powder is used to treat  non healing wounds. learn how to prepare triphala kashaya
6. It is extremely beneficial in skin diseases
7. It is good for improving eye sight and to treat computer vision syndrome
8. It helps to improve taste
9. It is also used in the treatment of chronic fever.
10. Triphala churna is useful to relieve laziness.
11. Triphala weight loss – It is also used in the treatment of obesity.

Taste: Sweet, sour, pungent, astringent, bitter
Virya:Ushna(Warm)
Vipaka: Sweet, Sour, Pungent
Guna: Light and dry
Dosha: Tridoshic, meaning it balances all constitutions
Prabhava: Rasayan, which means it builds Ojas, innate strength.
Triphala ingredients:
Amlaki(Indian gooseberry)
Haritaki (terminalia chebula)
Vibhtaki (terminalia bellerica)
All the three in equal quantities in their dry form and powdered.
Reference:
 Bhavaprakasha Nighantu.
Dosage:
1 tsp of triphala powder with lukewarm water before bed at night. Maintain a gap of 2 hrs. Between your dinner and taking of triphala churna.
Can be taken with honey, lemon juice or in the form of tea(decoction).
Tablet/capsule- 1-2 once or twice.
Dose under prescription.
Side effects:
Avoid in pregnant, may result in miscarriage.
In children can be given in small doses, under consultation.
With precaution in diabetic and older patients, IBS, or any such bowel disorder.
Excess of it can lead to dehydration, dryness