The active component in Castor Oil is Ricinoleic Acid (RA)! It's been well studied to have many benefits when applied topically. The main one being a "remarkable analgesic [pain relief] and anti-inflammatory effects," according to this PubMed study HERE (and others). When used for 1-3 weeks it reduced markers of inflammation, similar to capsaicin- the component of cayenne pepper that makes it spicy! Another natural anti-inflammatory. "​RA may be seen as a new capsaicin-like, non-pungent anti-inflammatory agent suitable for peripheral application."

CLOVE: One of my favorite pain killer secrets! Eugenol is the active compound in Oil of Cloves, is clinically studied to have Pain Relief and Anti-Arthritic effects!
According to a 2012 study "Treatment with eugenol starting at the onset of arthritis (day 25) ameliorated [show improvement in] these clinical signs of CIA [collagen-induced arthritis]... eugenol ameliorates experimental arthritis and could be useful as a beneficial supplement in treating human arthritis" -PubMed Study HERE.

FRANKINCENSE: A Boswellia Tree Sap Resin used for Thousands of Years! It has incredible benefits. 
Via Science Direct: 
"Clinical research indicates that frankincense, alone or in combination formulas, may be beneficial for gingivitis, asthma, diabetes, irritable bowel syndrome, collagenous colitis, Crohn’s disease, urinary tract infection, stress urinary incontinence, breast density, mastalgia, menorrhagia, osteoarthritis (OA), memory impairment, psoriasis, eczema, photoaging, rheumatoid arthritis (RA), chemotherapy-induced peripheral neuropathy, and radiation-induced brain edema." -Science Direct HERE.

EUCALYPTUS: Improves wellbeing, quality of life, and greatly reduces pain severity! 
Especially with arthritis!
Via ScienceDirect:
"The eucalyptus leads to pain reduction, and consequently, improves the quality of life of patients with rheumatoid arthritis." -randomized clinical trial HERE.

MAGNESIUM OIL: aka Magnesium Chloride is well known to help with sleep and magnesium deficiency disorders, but it's also been studied to greatly help with pain reduction and Anti-Inflammatory properties!

Via PubMed:
In this 2023 experimental study, Magnesium is largely used topically for "pain relief in musculoskeletal diseases. Mg salts were shown to provide analgesia postoperatively... MgCl2 decreases cytokine release in arthritis, prompting reduction of inflammation and pain relief." - See it HERE.

CAYANNE PEPPER: The thing that makes Spicy Peppers... well Spicy, is a component called Capsaicin. Capsaicin has a TON of health Benefits, but it just so happens to be really effective to reduce inflammation. Sprinkle on your skin after applying the ointment. 

Via PubMed Article:
"The analgesic, anti-inflammatory or apoptotic effects of capsaicin show promising results in arthritis, neuropathic pain, gastrointestinal disorders or cancer, since evidence demonstrates that the oral or local application of capsaicin reduce inflammation and pain in rheumatoid arthritis, promotes gastric protection against ulcer and induces apoptosis of the tumour cells." -HERE.