Grade: A (Strong Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Vitamin A	Acne
Grade: B (Good Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Zinc	Acne vulgaris
Grade: C (Unclear or Conflicting Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Guggul	Acne
Tea tree oil	Acne vulgaris
Traditional or Theoretical Uses which Lack Sufficient Evidence
Therapy	Specific therapeutic Use(s)
Abuta	Acne
Agrimony	Pimples
American pennyroyal	Acne
Apple cider vinegar	Acne (topical)
Arnica	Acne
Bay leaf	Furuncles (skin boil)
Boswellia	Acne
Bulbous buttercup	Pimples (small)
Burdock	Acne
Calendula	Acne
California jimson weed	Acne
Cat's claw	Acne
Chamomile	Acne
Chaparral	Acne
Chasteberry	Acne
Chromium	Acne
Cinnamon	Acne
Colloidal silver	Acne
Comfrey	Acne
Dandelion	Acne
Danshen	Acne
Devil's club	Acne
Echinacea	Acne
Flaxseed and flaxseed oil	Pimples
Fo-ti	Acne
Goldenseal	Acne
Hawthorn	Acne
Jequirity	Acne
Lactobacillus acidophilus	Acne
Ladies mantle	Acne
Lavender	Acne
L-Carnitine	Acne
Lemongrass	Acne
Lime	Acne
Meadowsweet	Acne
MSM	Acne
Niacin	Acne
Nopal	Acne
Oregano	Acne
Pantothenic acid	Acne (topical dexpanthenol)
Pokeweed	Acne
Propolis	Acne
Raspberry	Acne
Red clover	Acne
Riboflavin	Acne
Saccharomyces boulardii	Acne
Saw palmetto	Acne
Selenium	Acne
Sweet basil	Acne
Tamanu	Acne
Tea tree oil	Furuncles
Thyme	Acne
Valerian	Acne
Vitamin B6	Acne
Vitamin C	Acne
Vitamin E	Acne
Watercress	Acne
Wheatgrass	Acne
Yellow dock	Acne