Mammoth Essential Oil

SKU: 38-50021


Our Mammoth Multi-Purpose Oil blends organic argan and jojoba oils to create an all-natural moisturizer suitable for face, hair, and body that is light, non-greasy, and quickly absorbed by skin and hair.

Our Mammoth scent derives from the environs around Mammoth Hot Springs, an active geothermal feature of otherworldly travertine terraces and pools, found on the northern edge of Yellowstone National Park. Opening with mountain hay-grass and fresh citrus, our Mammoth fragrance then mellows into a heart of living sagebrush and cedarwood with earthy undertones; it's a fragrance for people who love the aroma of the great outdoors. Caswell-Massey bottled that magical moment of melting snow, wet earth, and new blossoms.

Explore more of our skin and hair oils here and browse the complete Yellowstone Collection here.

Every purchase of products from the Yellowstone Forever Collection benefits our non-profit park partner Yellowstone Forever to ensure that Yellowstone National Park remains the incredible resource it is for generations to come.

  • Apply a small amount directly to skin for use as a concentrated fragrance oil
  • As a skin moisturizer, use as an all-over body and face moisturizer
  • As a beard oil, warm a few drops in hands and smooth over beard and skin beneath to hydrate skin and hair, restore natural shine to hair, and tame beard's overall appearance
  • As a hair moisturizer, massage into scalp with fingertips for a moisturizing, stimulating treatment that deeply moisturizes and lightly fragrances hair
  • Argan oil has high levels of essential fatty acids that hydrate and strengthen skin tissue and condition hair and scalp
  • Jojoba oil is similar to skin's natural oils, so it sinks in deeply to help moisturize and heal, and prevents hair dryness and damage
  • A portion of proceeds supports Yellowstone Forever
  • Made with natural essential oils produced with solar power
  • Glass bottle and dropper included for ease of application
  • No parabens, sulfates, or phthalates
  • Cruelty-free
  • Made in the USA

Our Yellowstone Living Floral Collection features fragrances and oils made using living floral ingredients from Yellowstone National Park in partnership with Yellowstone Forever, the official non-profit partner of Yellowstone National Park.

Each purchase of these products supports Yellowstone Forever's mission of engagement and support through education and fundraising for the park, ensuring Yellowstone remains an incredible resource for future generations. 

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Cynthia S.
United States United States

Smells fabulous-very useful

After several purchases of different products and being delighted with all , I am now converted to a Caswell-massey only. Mammoth oil is used in my body lotion and hair leave-in conditioner . Nice subtle fragrance and receive compliments about smelling " so good". response," it's Caswell-massey!".

Sandra M.


I love the scent. I put it in my hair. It makes my hair feel and smell wonderful


Can’t speak highly enough

This stuff is terrific. Smells amazing, feels great. I use it in my hair and it’s made it way stronger and softer.

Reenie P.


I started off with Canyon and Tower Fall but Mammoth is my new favorite! The oil is perfect for dry legs or fly away hair. Put a little on your arms and hands before going to sleep and you will have sweet dreams. Have already ordered another bottle.