Don’t take my word for it. You can put HARVEST to the test.

I research ingredients, put them in the kettle, cook, and spend months of trial and error. Every ingredient I choose is an opportunity to make the soap clean better, be more versatile, and love your skin in the process. So besides customer feedback, I use science to maximize my recipes.

Yeah, I do my homework. But this is not the real test. The real test is when you put the soaps to work. Do they really clean, are they really versatile, and support your skin? Are they affordable?

If HARVEST doesn’t meet or exceed your expectations, we don’t deserve to exist. So if you are disappointed on any level, I will refund your money and hopefully get your criticism and feedback.

Tawana Weicker, Founder of HARVEST and retiring WARHORSE.

Here’s some research on and our soap chemistry and ingredients :

Why HARVEST makes versatile Castile Soap

Castile Soap: A Miracle Product for Both Cleaning and Beauty? by Emily Cronkleton. Medically reviewed by Cynthia Cobb, APRN on May 31, 2018.

Healthline’s Medical Affairs team focuses on ensuring Healthline’s content, products, and services uphold the highest standards of medical integrity. Their dedicated team also manages our extensive clinician network, which provides medical review for all clinical content. Covering the full spectrum of medicine, Healthline’s physicians, nurses, public health experts, and patient advocates help ensure that the information you receive is accurate, evidence based, current, and trustworthy.

Natural Oils & Skin Science

Natural Oils for Skin-Barrier Repair: Ancient Compounds Now Backed by Modern Science. American Journal of Clinical Dermatology. February 2018, Volume 19, Issue 1, pp 103–117.

Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oils. International Journal of Molecular Sciences. 2018 Jan; 19(1): 70.

Skin barrier benefits of sunflower seed oil. Dermatology Times. Peter Lio, M.D. Jul 13, 2015.

Interesting Science on Human, Dog, and Horse Skin Issues

Atopic Dermatitis in Animals and People: An Update and Comparative Review. Veterinary Sciences. 20174(3), 37; Vet. Sci. 20174(3), 37;

Urban environment predisposes dogs and their owners to allergic symptoms. Scientific Reports. 2018; 8: 1585.

Treatment of canine atopic dermatitis: 2015 updated guidelines from the International Committee on Allergic Diseases of Animals (ICADA). BMC Veterinary Research. 2015 Aug 16;11:210.

Atopic Dermatitis in Animals and People: An Update and Comparative Review. .Veterinarian Science. 2017 Sep; 4(3): 37.

The effect of a spot-on formulation containing polyunsaturated fatty acids and essential oils on dogs with atopic dermatitis. The Veterinary Journal. Volume 199, Issue 1, January 2014, Pages 39-43.