Hi Samantha, Welcome to HCM. Growth hormone, as the name suggests, increases the growth of various tissues in the body particularly muscloskeletal. Thus in children it is required for their normal growth. However, too much growth hormone in adults (exogenous or endogenous) will cause abnormal growth of your muscles and skeleton. Some of its apparent effects are increase in size of your hands and feet, increase in your jaw and widening in the gap between your teeth. In addition, it will also cause growth of internal organs as well as such increase in the size of heart, kidneys etc. Furthermore, growth hormone will also cause swelling in your vocal cords leading to hoarseness of voice. Some people may also develop skin hyperpigmentation and hypertrichosis (increase in body hair). There are many side effects of taking growth hormones and I will advise against it. However, if you are very interested in building muscles then I will advise going for proteins and if you are already taking it then I will advise you to continue taking it. It is much safer than the hormones. To answer your question, HGH will not affect the chemical peel course. Hope this helps.