Science confirms what our grandparents have known from the beginning of time. The following is an excerpt of an article published by Philippe MONMARCHE and Dr Laurent SOUSSELIER Renard, on a review done on the efficacy of crushed shea butter activity on the skin.
In a first clinical study on 15 volunteers, a 15% shea butter containing cream was applied twice a day for 5 months. (Fig 3) Very good results were obtained for the treatment of dermatitis, of cracked hands as well as in the more difficult treatment of cutaneous ulcers. The decongesting and anti-inflammatory action has been observed on the treatment of radio-epithelitis. Some patients who suffered from severe sequels of sunburns have been completely healed.
But, it is in the treatment of atrophic and degenerative skin condition linked to aging and to extensive solar exposure that shea butter has found its best indication. After 3 to 4 months, the skin aspect improves drastically. The skin becoming more supple and less wrinkled.
A second clinical study involved a daily application of pure shea butter for 4 months on 23 volunteers exhibiting major signs of cutaneous aging. (Fig 4)The dry, rough, sometimes finely scaly aspect of the epidermis, was certainly the most frequent condition observed and the least accepted by the patients. It is obvious that many lipids will correct the deficiencies of the hydrolipidic film and will enable the skin to recover partially some of its suppleness. However, the improvement obtained with shea butter was particularly quick and obvious. It allowed in a few weeks a tangible improvement of the aspect of the superficial epidermal layers of the epidermis whit a smoother and clearer skin. This might be related to the regulation of the renewal of superficial horny layers and to the disappearing of preexisting para-keratosis.