JP, Basement 1. I think also can get in GNC. The one I bought has no color, $20.5 for 10ml. For better effect, can use together with Lavendar($14.5/10ml) and Rosemary($14.5/10ml). This usage is for oil skin only.
1)If only for pimple itself, just apply tea tree oil on the infected area.
2) If want delimish the pimple scars, mix 1 drop lavender, 1 drop rosemary with 5ml grape seeds oil, massage on the area then wash.