Your armpits deserve nothing but the best. That’s why we designed Kersh Organic’s Organic Grass-Fed, Grass-Finished Tallow Deodorant.
Here is why this product is fantastic.
1. It is Aluminum-Free. Some studies suggest that Aluminum can cause various health issues. First is the potential link to Alzheimer’s Disease. (1) Its also linked to Parkinson's disease, dialysis encephalopathy, bone disorder, human breast cancer, and it is also considered to be a neurotoxin. (2) So for something that you’re wearing daily, it’s best to avoid Aluminum.
2. It is free of endocrine-disruptors. It does not contain phthalates, parabens, formaldehyde releasers, propylene glycol, GMOs, talc or fragrances. Many deodorants contain ingredients that alter your hormones (think estrogen or testosterone) and leave your body working less optimally. For example, studies show that Lavender or Tea Tree oil can cause estrogenic effects in the body. (3) What this means is that for men, their sperm count can decrease and cause permanent damage to testicles. (4) What this means for women is increase chance for breast cancer (5). These endocrine distruptors can even cause people to gain weight or hold onto extra weight. It also is linked to a slew of other issues- like Cardiovascular disease, Autism / AdHD, various cancers, and even osteoporosis. (6)
3. Ingredients compound in the armpits. If you think you can get a bargain deodorant, you may want to think again. The armpit is not only close to the breast, but its also filled with tons of lymphatic vessels. When you apply deodorant, the skin rubs on top of each other, further increasing the absorption of the product in your system. If your deodorant contains harmful or potentially harmful ingredients, it’s exponentiated in your armpits.
These gentle, toxin-free formulas allow your body to sweat naturally—an important process for detoxification—while keeping you fresh and supporting overall skin health.
The result? Smooth, non-greasy application, zero baking-soda sting for most users (thanks to the nourishing tallow base), and reliable protection that keeps working even through workouts or long days.
We deliberately left out the toxic ingredients that fill most store-bought deodorants and antiperspirants. Here’s exactly what you’re avoiding and why it’s a big deal:
This deodorant is aluminum-free, paraben-free, phthalate-free, fragrance-free, and completely non-toxic by design. It’s safe for sensitive skin, breastfeeding moms, teens, and anyone who wants to reduce their daily chemical load.
Perfect for everyday use, travel, gym bags, or as a thoughtful gift for anyone switching to clean personal care. Hand-poured in small batches so every jar is fresh and potent.
Our Tallow comes in the form of Suet which we render to Tallow.
Suet is the premium hard fat surrounding the kidneys and loins, far cleaner and purer than softer leaf fat or muscle trimmings. We render our Organic Grass-Fed Grass-Finished Suet because it contains fewer impurities and a milder scent, plus a superior fatty acid profile that enhances skin absorption and barrier repair.
It is unbleached, unrefined, unprocessed, and not deodorized. This is important because the process of refining creates toxic byproducts (such as Polyaromatic hydrocarbons) which can cause cancer. This type of processing can strip the nutrients, enzymes, minerals, and vitamins naturally occurring in tallow and leave you with a stripped product lacking in these nutritional benefits. Many of the times, to cut costs, they use Tallow from soy and grain fed cows. We are different. Our cows are humanely raised on green pasture!
Our Tallow also has a slight yellow tint due to the naturally occurring beta-carotene naturally occurring in beef raised on organic pastures. We do not bleach our tallow to produce a white product.
This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease or condition. Consult a healthcare professional before use if needed.
Sources Cited:
1. Klotz K, Weistenhöfer W, Neff F, Hartwig A, van Thriel C, Drexler H. The Health Effects of Aluminum Exposure. Dtsch Arztebl Int. 2017 Sep 29;114(39):653-659. doi: 10.3238/arztebl.2017.0653. PMID: 29034866; PMCID: PMC5651828.
2. Dordevic D, Buchtova H, Jancikova S, Macharackova B, Jarosova M, Vitez T, Kushkevych I. Aluminum contamination of food during culinary preparation: Case study with aluminum foil and consumers' preferences. Food Sci Nutr. 2019 Sep 9;7(10):3349-3360. doi: 10.1002/fsn3.1204. PMID: 31660148; PMCID: PMC6804775.
3. Endocrine Society. (2019, November 21). Chemicals in Lavender and tea tree oil appear to be hormone disruptors. https://www.endocrine.org/news-and-advocacy/news-room/2018/chemicals-in-lavender-and-tea-tree-oil-appear-to-be-hormone-disruptors
4. “Elevated Estradiol and Male Infertility.” Male Infertility Guide, www.maleinfertilityguide.com/elevated-estradiol#:~:text=Introduction%20to%20Elevated%20Estradiol%20Levels,of%20breast%20tissue%20in%20men).&text=2)%20The%20ratio%20between%20the,called%20the%20T/E%20ratio. Accessed 16 Oct. 2025.
5. Risk factors: Hormones. Risk Factors: Hormones - NCI. (n.d.). https://www.cancer.gov/about-cancer/causes-prevention/risk/hormones#:~:text=Estrogens%2C%20a%20group%20of%20female,protective%20factor%20for%20breast%20cancer.
6. Mokra K. Endocrine Disruptor Potential of Short- and Long-Chain Perfluoroalkyl Substances (PFASs)-A Synthesis of Current Knowledge with Proposal of Molecular Mechanism. Int J Mol Sci. 2021 Feb 21;22(4):2148. doi: 10.3390/ijms22042148. PMID: 33670069; PMCID: PMC7926449.