Degelatinated Deer Horn Classic Formulas

Primary Actions

Warms the Kidneys and assists Yang while being more astringent and stabilizing than richer deer tonics - Lu Jiao Shuang is used for low back soreness, impotence, enuresis, and frequent urination from deficiency-cold.
Astringes to stop bleeding in deficiency-cold patterns - traditional indications include uterine bleeding, prolonged spotting, and other leakage patterns when warming containment is needed.
Supports the Spleen and Stomach in deficiency-cold - unlike some stronger Yang tonics, Lu Jiao Shuang is also used for poor appetite, loose stool, and cold middle-burner weakness.

Suo Yang Gu Jing Wan - formula tradition using Lu Jiao Shuang to reinforce Kidney Yang and secure essence in spermatorrhea and lower-gate weakness.
Leakage and uterine-bleeding formulas with Long Gu, Mu Li, and Tu Si Zi - common astringing-warming combination logic when instability of the lower burner is prominent.

TCM Wiki describes Lu Jiao Shuang as astringent, salty, and warm, entering the Liver and Kidney channels, with actions of warming the Kidneys, tonifying Yang, and astringing to stop bleeding.
Traditional use also extends the herb into deficiency-cold digestive weakness, showing that its stabilizing profile is broader than purely sexual-tonic use.