Our organic farmed Comfrey leaf double infused oil ... Comfrey Leaf  Oil has been used since at least the 4th century medicinally & It is now used ONLY for external use. Herbalists & Folk remedy medicine makers would bind Comfrey leaves and roots in poultices, then apply those poultices to the skin to treat injuries. The first European settlers of North America considered Comfrey so indispensable, they carried it on their journey across the Atlantic in the 1600s. Comfrey is also known as 'Bone-Knit' for it's ability to promote speedy healing of osteo breaks and fractures. Comfrey has a centuries-old tradition as a medicinal plant. Today, multiple randomized controlled trials have demonstrated the efficacy and safety of topical Comfrey preparations for the topical treatment of pain, inflammation and swelling of muscles and joints in degenerative arthritis, acute myalgia in the back, sprains, closed contusions and strains after sports injuries and accidents, in adults and also in children aged 3 or 4 years and over. As well as pulled muscles and ligaments, fractures, sprains, strains, and osteoarthritis.
 
Our farmed Comfrey leaf = (Symphytum grandiflorum is known for the rich allantoin content, a substance that helps new skin cells grow, along with other beneficial substances that reduce inflammation and keep skin healthy & low concentrations of unsaturated pyrrolizidine alkaloids (UPAs).
 
"The Comfrey plant has long been used as a topical analgesic and anti-inflammatory. Comfrey plants can be used to alleviate muscular discomfort, mend fractures and wounds, and function as an anti-inflammatory (Seigner et al., 2019). Previous research has indicated that comfrey plants have analgesic and anti-inflammatory properties due to the presence of phenolic substances such as rosmarinate acid. Rosmarinic acid inhibits the production and release of pro-inflammatory mediators (Oliviu et al., 2017)."
Source:
https://www.frontiersin.org/articles/10.3389/fphar.2023.1012716/full 
 
Comfrey ~ Symphytum actually means to join or unite—in essence, to heal.
 
Comfrey is so effective at supporting cell proliferation that one actually has to be mindful in using it - Comfrey is not to be used on open abrasions/scrapes or wounds and not on cuts or lacerations until the skin has closed and there is no chance of infection.
 
Comfrey leaf is used only topically on fracture sites, joint injuries, tendon tears, ligament injuries, sprains, arthritis, pain, bruising or muscular suffering other musculature and internal tissue damage. 
 
Comfrey leaf can be applied directly as a prepared leaf poultice, an infused oil, infused oil added to creams or formulated into a salve. Duration of topical use of Comfrey infused Oil OR Comfrey Leaf Poultices is: 4 weeks maximum length of time at most.
 
Organic Comfrey Leaf INFUSED Grapeseed Oil - 250 ml - clear glass bottle.
Store in fridge to extend shelf life.
Use within 1 year of purchase.
Keep from reach of children.  
 
NOTE:
Reminder Comfrey Leaf is for external use only and not to be ingested in any form.