1 st hand : Farmer - Price between Rp.30k - 55k/ per kg (estimated profit 30%-50%)
2 nd hand : Co-owner / Distributor - Price between Rp.65k-90k / per kg [ profit between ( estimated profit 60%-90% , if counted from farmer side)
3 rd hand : Retail shop - Price between Rp.110k-125k / per kg (normally they sell per packet for an once, and they give special discount if buying in bulk) (estimated profit 50%-70%, if counted from distributor side)
[all price and profit were given by store owner (by interview and via telephone), found from the internet, and logic estimated, so it is subject to change and not 100% accurately]
(Wikipedia) food supplement is, typically, a nutrient added to a foodstuff which would otherwise not contain that nutrient.
(Vitahealth 2004) According to it, Food Supplement is, healty food, also known as dietary supplement with official name Nutraceutical, contain one or more nutrient (including vitamins, minerals, and amino acids), and if in form of medicine (capsule or tablet or syrup) known as Pharmaceutical
Yes / No ?
Roselle can be used to make or as the ingredient to make a food supplement, because inside of the Roselle itself contain many types of nutrients that useful for our health and metabolism (contain many type of amino acid, vitamin C, protein and many more useful nutrient.
Even in form of herbal tea, it still contain high amount of vitamin C and amino acids
But no if the product can not be consumed by our mouth (Roselle soap)