15 -20 in Virgin Straight Hair

17 inches, straight brown virgin hair, undyed, grown for 4 years. I drank a liter and a half of water a day, my activity is at home, I don’t have any treatment for my hair due to my daughter’s pregnancy and lactation. My hair is completely straight and brown and with the light it becomes a little pale. I iron it with heat protectant 2 times a month and I don’t use gel, just an oil and a moisturizer.
Only paypal payments without parabens or sulfates and I use conditioner 2 times a month. We negotiate the shipping of the product depending on the package that I have in my state and I only accept Paypal.