We take a great number of supplements everyday; one of the more popular ones are Collagen supplements. Many people use the best Collagen pills so as to improve their nail and hair growth, prevent skin ageing and even for aches and pains. Collagen supplements are known to provide us with a number of benefits but like all other supplements people are worried about Collagen pills side effects too. These side-effects are known to range from things as simple as a lingering taste in the mouth and decreased appetite to allergies. But these side effects are not so common and are reported by as less as 1% of Collagen Pills users and compared to a range of benefits, from wrinkle free and radiant skin to lessening of joint pains, can be said to be negligible.