Hello there.
For thickness of hair focus on a diet rich in Proteins, Vitamins ACDE, Biotin to begin with. Specifics will depend on your leaning towards being a Vegetarian or Non Vegetarian and personal preferences.
Hence advice is to CONSULT ONLINE or go in for an INSTANT Consultation to help structure a diet specifically for you. 🙏
Health Tips
Avoid handling your hair too much and shampoo using a mild shampoo eg Dove 🕊️ only twice weekly.
Dietitian or a Nutritionist advice together with your Dermatologist may be a more pucca scientific way of handling hair raising issues!!