Hydroqinone 20 percent, is is it safe to use it??!

dear doc. i am realy not happy with my skin and i always use creams and lotion to kinda light my skin and i ended up with streatchmarks all over my body .I used the cream that said it was naturaly lighting the skin with no steroids but it gave me streatch marks i stoped using this cream over a year ago and ive become darker and naturaly am a medium light skin but i want to have a fair skin tone.i saw this cream called lemon cream and it has hydroqynone 20 percent .my question is is it safe to use it ??!

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