The following studies find that topical vitamin B(12) and urea may both be effective, well tolerated, and safe therapeutic approaches for the treatment of atopic dermatitis.

“Topical vitamin B12–a new therapeutic approach in atopic dermatitis-evaluation of efficacy and tolerability in a randomized placebo-controlled multicentre clinical trial” (Br J Dermatol. 2004 May;150(5):977-83).

BACKGROUND: Vitamin B (12) is an effective scavenger of nitric oxide (NO). As the experimental application of a NO synthase inhibitor, N omega-nitro-L-arginine, led to a clear decrease in pruritus and erythema in atopic dermatitis, it would be reasonable to assume a comparable effect of vitamin B (12).

OBJECTIVES: The efficacy and tolerability of a new vitamin B (12) cream as a possible alternative to current therapies was examined.

METHODS: A prospective, randomized and placebo-controlled phase III multicentre trial, involving 49 patients was conducted. For the treatment duration of 8 weeks, each patient applied twice daily (in the morning and evening) the vitamin B (12)-containing active preparation to the affected skin areas of one side of the body and the placebo preparation to the contralateral side according to the randomization scheme.

RESULTS: On the body side treated with the vitamin B(12) cream, the modified Six Area Six Sign Atopic Dermatitis score dropped to a significantly greater extent than on the placebo-treated body side (for the investigational drug 55.34 +/- 5.74 SEM, for placebo 28.87 +/- 4.86 SEM, P < 0.001). At the conclusion of the study, the investigator and patients awarded mostly a ‘good’ or ‘very good’ rating to the active drug (58% and 59%, respectively) and a ‘moderate’ or ‘poor’ rating to the placebo (89% and 87%, respectively).

CONCLUSIONS: Topical vitamin B (12) is a new therapeutic approach in atopic dermatitis. These results document a significant superiority of vitamin B(12) cream in comparison with placebo with regard to the reduction of the extent and severity of atopic dermatitis. Furthermore, the treatment was very well tolerated and involved only very low safety risks for the patients. PMID: 15149512

“A double-blind study of tolerance and efficacy of a new urea-containing moisturizer in patients with atopic dermatitis” (J Cosmet Dermatol. 2010 Mar;9(1):16-21).

BACKGROUND: Atopic dermatitis patients almost all use moisturizers to prevent and treat their skin disease. However, the safety and efficacy of moisturizers are rarely studied in this patient population. Aims: To evaluate the efficacy and tolerability of urea-containing moisturizers in subjects with atopic dermatitis.

METHODS: One hundred subjects with atopic dermatitis were randomized to apply either a new 5% urea moisturizer or a commercially available 10% urea lotion twice a day for 42 days. Scoring Atopic Dermatitis severity index (SCORAD) was performed at Day 0 and Day 42. Cosmetic acceptability questionnaires, adverse events, and a 5-point tolerance evaluation were administered or performed at Day 42.

RESULTS: Both study products were very well tolerated by subjects and only three subjects discontinued their participation in the study due to adverse events. Mean SCORAD significantly decreased between Day 0 and Day 42 by 19.76% and 19.23%, respectively, for subjects treated with the new 5% urea moisturizer or the 10% urea lotion (P < 0.001). There was no difference between the two products in SCORAD reduction; however, significantly more subjects preferred using the new 5% urea moisturizer as compared with the 10% urea lotion.

CONCLUSIONS: Both the new 5% urea moisturizer and the 10% urea lotion improved atopic dermatitis and were very well tolerated. However, the cosmetic acceptability questionnaire showed that subjects preferred using the new 5% urea moisturizer over the 10% urea lotion. PMID: 20367668

We have the ability to combine Vitamin B12 and Urea together into one topical cream.

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