TCM Properties

Traditional Use

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.

This is the horn residue left after producing antler gelatin, and traditional teaching treats that processing history as part of why Lu Jiao Shuang is more drying, stabilizing, and leakage-focused than Lu Jiao Jiao.
It is often favored when weakness and leakage coexist and the treatment goal is to warm and secure rather than to richly nourish.

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.

Direct indexed modern research on Lu Jiao Shuang itself is sparse, and most deer-horn literature focuses on velvet antler, deer horn, or deer antler-base preparations rather than this processed residue.
As a result, modern interpretation of Lu Jiao Shuang remains driven mainly by traditional processing logic and formula use rather than herb-specific pharmacology.

Most modern evidence is indirect and comes from broader deer-horn literature rather than Lu Jiao Shuang specifically.
Use during pregnancy should be clinician-guided because the herb is warming and astringing rather than broadly food-like.
As with other deer products, source verification matters.