A traditional formula for low libido, impotence, and decreased sexual function
Tonic for Men and Women (Zan Yu Dan Pian) supports the body when low libido, fatigue, coldness, and reduced vitality begin to affect sexual and reproductive strength. Zhang Jing-Yue recorded it in Jing Yue Quan Shu ( Collected Treatises of Zhang Jing-Yue ) in 1624. Practitioners have long chosen it when Kidney Yang feels too weak to warm, activate, and support the body properly. It remains a trusted choice when sexual vitality and constitutional strength both feel depleted.
When to use it
In Traditional Chinese Medicine, practitioners choose Tonic for Men and Women when Kidney Yang no longer provides enough warmth and drive for reproductive and metabolic function. Libido may decrease. Energy may feel low. The lower back and knees may feel cold or weak. Some also notice impotence, premature ejaculation, clear urine, listlessness, or a general loss of vitality.
Many choose this formula for reduced libido, impotence, reproductive weakness, cold-type fatigue, and age-related decline in vitality. It suits those who want support when the body feels underpowered, colder, and less resilient over time.
Why it stands out
What makes Tonic for Men and Women so useful is its warming and restorative approach. It does not only target sexual function. It also helps rebuild the deeper Yang strength that supports energy, reproductive vitality, and constitutional resilience. This makes it a strong choice for natural support when libido and stamina decline together.
Research
Research on Tonic for Men and Women has shown encouraging results in sexual dysfunction, spermatogenic support, testosterone regulation, and erectile function. Studies have reported improved testosterone levels, better nitric oxide and cGMP signalling, support for spermatogenesis, and good clinical outcomes in impotence. Research has also highlighted benefits in both physiological and psychological contributors to sexual dysfunction, helping explain its relevance when reproductive strength and vitality need rebuilding.
Important to know
Do not use Tonic for Men and Women in hypertension.