For relief of Muscular Pains
  
 
Backaches, arthritis, bruises, strains ,   shoulder tension and an aching neck.
  
Menthol 
"Menthol has analgesic properties that are mediated through a selective   activation of κ-opioid receptors." (1) 
Camphor
"Camphor acts as slight local anesthetic and antimicrobial substance." (2)  
Eucalyptus Oil
"Eucalyptus oil has anti-inflammatory and analgesic qualities as a topically   applied  ingredient." (3),(4) 
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