Begin with your own routine
Herbae Fix Hair Oil comes in 100 ml and 200 ml bottles. Choosing a size starts with how much you use, how often you use it, and the directions on your packaging.
Keep it compact with 100 ml
The smaller format is a straightforward starting point if you prefer keeping less product on your shelf. Check the bottle dimensions before choosing a space in your care bag.
Make room for 200 ml
The larger bottle holds twice the volume. At the same amount per use, that means twice as many uses. It does not automatically mean better value: compare each confirmed price per millilitre.
Do the maths
Divide bottle volume by your own amount per use. Then divide the number of uses by your weekly frequency. Our bottle-duration tool does this for you. Its result is a planning estimate, not a recommended application amount or a shelf-life claim.