Nope - not at all. In fact, many hypoallergenic products contain very few of what most people would consider 'natural'* ingredients (the skincare brand Clinique is a good example of this). 'Natural' products are often more problematic for people with contact allergies than non-natural products. Hypoallergenic means different things in different countries, but normally that means that the product does not contain anything that is a known common allergen. Very few 'natural' products can claim that.
*Natural is relative, however. Everything's made from something, somehow, and most 'chemical' ingredients are derived from 'natural' sources (scare quotes because these are slippery terms). Also, natural isn't necessarily safe - cyanide can be made from almonds and other seeds, arsenic is naturally occurring in many minerals, and so on.
3b/c. Fine, med-high porosity, normal elasticity. Hair loves oils in summer, protein in winter. Constantly battling the hard water monster.
CJ Curl Theory, Curl Rehab, Smoothing, Curl Fix, Daily Fix, CCCC, CIAB, CQ, SSCC, MC shampoo, Inecto Pure Coconut Oil, CP luscious curl creme (summer), DB Pumpkin Seed (summer), FD/MT, JCWDT, JCTS
American literature PhD student in the UK...