Topical products
The following natural treatments have been studied, proven or mentioned in conjunction with psoriasis in the medical community or have been brought to our attention by a significant number of Psoriasis Foundation members.
Aloe
Aloe is a member of the lily family and is a common houseplant. Although there are approximately 500 species, the best known is aloe vera. Aloe vera looks like a cactus with soft leaves. The fluid contained in the leaves has been used for centuries to treat burns
and minor wounds. Today, aloe gel is used frequently as an ingredient in cosmetics, creams, ointments and suntan lotions.
A study published in 1996 in Tropical Medicine and International Health found that aloe vera was very effective in the treatment of psoriasis. By the end of the 16-week study, a cream with aloe vera extract caused a significant clearing of psoriasis in 25 of 30 patients, compared to two out of 30 with the placebo. However, a study published in May 2005 in the Journal of the European Academy of Dermatology and Venereology found that the effect of commercial aloe vera gel on stable plaque psoriasis was modest and not much better than placebo.
Apple cider vinegar
Many ancient cultures used different types of vinegar (derived from dates, figs, etc.) for medicinal purposes. Apple cider vinegar has been used throughout the years as a disinfectant or soothing agent.
The Psoriasis Foundation hears from people who apply apple cider vinegar to their skin as a treatment for psoriasis. People add it to the bath, mix it with a moisturizer, soak fingernails and toenails in it, and apply it directly to the skin with cotton balls or pads. The vinegar can be purchased at the grocery store.
Capsaicin
Capsaicin, a natural ingredient found in cayenne peppers, has been shown in some studies to work on redness, scaling and itching of the skin. Researchers have shown that capsaicin interrupts the action of substance P, (a molecule which affects how the brain recognizes pain and itch sensations) at the nerve ending. Many over-the-counter topical pain-relief products for arthritis contain capsaicin.
In two separate studies with psoriasis patients, 0.025% capsaicin cream used topically was effective in decreasing scaling and redness. The main side effect was a short-lived burning sensation. Several studies indicate that topical capsaicin products can also help reduce joint pain associated with psoriatic arthritis. Capsaicin can cause a severe burning sensation if it comes in contact with the eyes, nasal passages or mucous membranes. Capsaicin may be found in lotions, creams, therapeutic patches and ointments available at drugstores.
Emu oil
Emu oil can be found in cosmetic products touted for their protective and softening effects on the skin. The exact mechanism by which emu oil works is not known. Emu oil can be difficult to obtain and may be relatively expensive. No health benefits have yet been
established.
Evening primrose oil
Many studies have evaluated topical creams and lotions containing evening primrose oil in treating the skin condition eczema. All report reduction of the primary symptoms of eczema and the overall severity of the skin disorder. No studies have been conducted to evaluate the use of evening primrose oil in treating psoriasis.
No side effects have been reported with evening primrose oil, and there have been no complaints concerning its safety for topical use.
Evening primrose oil can also be taken orally as a dietary supplement. For more information, see diet.
Oats
Many skin-care products, available at most drugstores, contain oat extract or oat derivatives. Oat extracts have been used for centuries as soothing topical agents. Oat plant derivatives have been used to manage dry, itchy skin conditions. Many bath products include colloidal oatmeal as the active ingredient.
You can make your own oatmeal bath. Combine one cup oats, one quarter cup dried milk and two tablespoons apricot kernel oil. Pulverize the oats and dry milk in a food processor or blender. Gradually mix in the oil. Place the mixture in a cotton bag, sock or handkerchief and put in the tub while filling. To release the preparation, squeeze while soaking in the
bath.
Tea tree oil
A species of tea tree (Melaleuca alternifolia) produces tea tree oil. This tea tree is native to Australia, and its oil was first used in surgery and dentistry in the 1920s. It is known for its antibacterial and antiseptic properties. Tea tree oil has traditionally been used for colds, headaches, toothaches, sore muscles, rheumatism and skin disorders.
Today, tea tree oil is the active ingredient in a variety of creams, lotions, soaps and shampoos. Some Foundation members report success with it, particularly for scalp psoriasis.
Little is known about what strength of tea tree oil is safe and effective. However, if it irritates the skin, discontinue use. Tea tree oil is toxic if ingested and should only be used topically. Cases of contact allergy have been reported.
Updated November 2006
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