80 women between the ages of 18 and 50 with low sexual desire were treated with ashwagandha or placebo for 8 weeks.
Results: the women treated with ashwagandha saw nearly double the improvement in sexual health as measured by a standardized score for sexual function.
Improvement was noted in every factor measured, including sexual desire, arousal, and satisfaction.

This study confirms a previous study, in which otherwise healthy women experiencing sexual dysfunction and reduced libido were treated with Ashwagandha, which increased overall sexual health by almost 20%, and arousal specifically by 30%.

Other Libido-Boosters for Women

Maca: in menopausal women, six weeks of Maca supplementation reduced sexual dysfunction score (as measured by a standardized assessment) by approximately 30%.

Rhodiola: relieves fatigue, improves mood, and binds to estrogen receptors without activating estrogen.

Red ginseng: increases energy and libido. Increased sexual arousal (13%) versus placebo in menopausal women.
Increased energy: 20% reduction in fatigue for postmenopausal women taking red ginseng.

Combine 300 mg red ginseng with maca, rhodiola, ashwagandha, and zinc. Take daily.