Complex sentence: Another drawback to waxing is the expense: waxing is usually performed by a licensed cosmetologist, and the cost can be very high, there are however do-it-yourself waxing supplies.
Split into simpler sentences: Another drawback to waxing is the expense: waxing is usually performed by a licensed cosmetologist, and the cost can be very high. There are however do-it-yourself waxing supplies.