This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
It’s most useful to take 2-3 hours before bed to reset your circadian rhythm. Essentially it mimics the melatonin you make at sun down to prepare your body for sleep. You only need 1-2 mg to do this.
I even think 1 mg is too much. It’s active in microgram doses. Also read the Wikipedia page, it’s poorly regulated and pills can contain upwards of 4x what they say.