Base Recipe:

• Magnesium oil: Mix equal parts magnesium chloride flakes with distilled water (warm gently in a pot—never microwave). Stir until dissolved.
• MSM: Add MSM flakes/powder (1–2 Tbsp per cup) to the warm magnesium solution—dissolves easily.
• DMSO: Add equal parts (or less, e.g., 1:2 ratio for milder smell) pharmaceutical-grade DMSO.
• Optional: Aloe/glycerin: Add a squirt of pure aloe vera gel or vegetable glycerin for soothing.
  *This shortens the shelf life of the product SIGNIFICANTLY to 1-4 weeks in the fridge. Leaving aloe/glycerin out of the equation gives the product a 3-6+ month shelf life. I opt not to use it. Aloe vera and glycerin feed bacteria and don’t add any significant advantage to the recipe.
• Optional: 5–10 drops frankincense or other essential oil (anti-inflammatory).

Recommended products:

Magnesium Chloride Flakes:
https://www.iherb.com/pr/life-flo-pure-magnesium-flakes-1-65-lb-26-4-oz/85784?rcode=ATJ5704

MSM Powder or crystals: 

HAPPY BODY ORGANIC  MSM USA
https://happybodystore.com/?aff=14

HAPPY BODY ORGANIC MSM CANADA:
https://happybodystore.com/shop-canada/?aff=14

OptiMSM: iHerb Discount code – ATJ5704
https://iherb.prf.hn/l/jXON05y/

GLYCERINE:
https://www.iherb.com/pr/now-foods-vegetable-glycerin-4-fl-oz-118-ml/116917?rcode=ATJ5704

Instructions:

• Warm distilled water (not boiling), dissolve magnesium flakes + MSM.
• Let cool slightly, add DMSO and aloe/glycerin.
• Stir well, pour into glass dropper or roller bottle.
• Store in a cool, dark place. Use within 1–2 months (shake before use).

Benefits of the Recipe 

• Magnesium relaxes muscles, reduces pain/inflammation.
• MSM provides sulfur for joint/tissue repair.
• DMSO carries ingredients deep (great penetration).
• Aloe/glycerin soothes skin, prevents dryness but shorten the life of the product – opt to add these ingredients separately.
• Frankincense adds extra anti-inflammatory punch.

Safety Notes:

• Always patch test on inner arm (DMSO can irritate sensitive skin).
• Use pharmaceutical-grade DMSO (99.9% pure).
• Avoid eyes/mucous membranes.
• If skin turns red or itches, dilute further or discontinue.

Recommended Essential Oils: 

• Helichrysum – Known as “the trauma oil,” excellent for pain, inflammation, bruising, and tissue repair.
• Myrrh – Anti-inflammatory, analgesic, supports healing of wounds and pain.
• Peppermint – Cooling, numbing effect for muscle/joint pain.
• Wintergreen – Strong analgesic (contains methyl salicylate, similar to aspirin).
• Lavender – Calming, reduces pain perception.
  Recommended Essential Oils:
  EDENS GARDEN
  http://www.edensgarden.com?aff=110

Stability This DMSO Topical Pain Cream

The recipe (magnesium oil + DMSO + MSM + optional EOs is stable for 3-6+ months) Adding aloe vera or glycerin creates food for bacteria etc. so shelf life is much shorter.

Shelf Life & Stability

• Realistic shelf life: 4–6 weeks refrigerated, possibly up to 2+ months if very clean and stored properly. Watch for changes in color, odor, consistency etc. 3-6+ months if aloe/glycerin are omitted.

Go here for a Stable Oil-Based CS + DMSO + MSM Pain Salve (No Water, No Mold Risk)  + Magnesium Oil
https://staging.mohrhealthyliving.com/two-part-diy-topical-pain-relief-magnesium-spray-oil-based-salve/