- A barber can prep, style, cut, color and shave hair, and can apply cosmetic preparations, antiseptics, powders or lotions to the scalp, face or neck. Barbers are the only ones who can shave a consumer or display a striped pole outside their shop.
- A cosmetologist can prep, style, cut, color, bleach or straighten body hair, including tinting eyelashes; may give facials and remove hair by waxing or tweezing. The license allows them to provide any services of an esthetician or manicurist (see below)
- Estheticians can perform facials and remove body hair by tweezing or waxing. They may apply makeup, false eyelashes, and do face or neck massages. They can bleach skin using chemical exfoliation.
- Manicurists can give manicures and pedicures and apply gel, acrylic or silk false nails. They are limited to working on hand and foot areas only. Ingrown toenails must be treated by a doctor.
- Electrologists may use a needle or probe to remove hair from a person using electric current. They are the only licensees that can use needles.
- Wigologists are people trained in wig and hairpiece fitting, styling, coloring and repair.
- Physicians (and nurses working with them) can do laser hair removal or aesethetic cosmetic (plastic) surgery.
- Hairbraiders create elaborate braids and cornrows in naturally curly hair. Braiding is specifically exempted from cosmetology licensing in California and some other states.
- Massage Therapists who treat muscles beyond the face and neck.
- Practitioners who apply permanent makeup, cosmetics or tattoos.
- Operators of tanning salons.
However, if you want to earn lots of money, you could take up math. Notice there aren't many mathematicians, and none of them are self-employed. Although they make a lot of money, they certainly don't make anyone else look better. Except perhaps by comparison.