por a , ▁O ce ania ▁and ▁in ▁some ▁parts ▁of ▁South ▁and ▁S out heast ▁Asia . ▁Each ▁str and ▁of ▁this ▁hair ▁type ▁grows ▁in ▁a ▁tiny , ▁angle - like ▁hel ix ▁shape . ▁The ▁overall ▁effect ▁is ▁such ▁that , ▁compared ▁to ▁straight , ▁w avy ▁or ▁cur ly ▁hair , ▁af ro - text ured ▁hair ▁appears ▁dens er . ▁ ▁Term in ology ▁ ▁English ▁ad ject ives ▁such ▁as ▁" wo olly ", ▁" k ink y ", ▁" n appy ", ▁or ▁" sp ir alled " ▁have ▁ ▁been ▁used ▁to ▁describe ▁natural ▁af ro - text ured ▁. ▁More ▁formally , ▁the ▁ad jective ▁u lot rich ous ▁(" cur ly - ha ired ", ▁Greek ▁ ο ὐ λ ό τ ρ ι χ ος , ▁from ▁ ο <0xE1> <0xBD> <0x96> λ ος ▁" wo olly , ▁fle ec y " ▁and ▁ θ ρ ί ξ ▁" h air ") ▁refers ▁to ▁af ro - text ured ▁hair , ▁its ▁an ton ym ▁being ▁le iot rich ous ▁(" sm ooth - ha ired "). ▁ ▁Jean ▁Bapt iste ▁B ory ▁de ▁Saint - V in cent ▁in ▁ 1 8 2 5 ▁introduced ▁the ▁scientific ▁term ▁O ul ot rich i ▁for ▁the ▁purpose ▁of ▁human ▁tax onomy . ▁ ▁In ▁ 1 9 9 7 ▁ha irst y list ▁Andre ▁Walker ▁created ▁a ▁numerical ▁grad ing ▁system ▁for ▁human ▁hair ▁types . ▁The ▁Andre ▁Walker ▁H air ▁Typ