proDERM Institute for Applied Dermatological Research, Hamburg, Germany.
To assess the efficacy of Bio‑Oil Skincare Oil (Natural) in improving the
appearance of striae.
Subjects: 36 female participants of varying ethnicities. Striae causes: various
(post pregnancy, weight gain, weight training or adolescent growth spurt). Striae
locations: abdomen, arms, thigh and hips. Age of participants: 18—65.
Evaluator blinded, randomised image assessment, open-labelled study. Subject
inclusion was performed by a physician according to the Mallol Score. Bio‑Oil
Skincare Oil (Natural) was applied twice daily for 8 weeks by gently massaging
in a circular motion on the assigned striae and surrounding skin. Application 22
was performed under supervision at regular intervals. The main objective was to
assess the effect of the product on the skin investigated by means of POSAS at
baseline, and at 2, 4 and 8 weeks. A further parameter investigated at the end
of the study included image assessment of the aesthetic outcome by 6 trained
assessors and subjects themselves.
Bio‑Oil Skincare Oil (Natural) is efficacious in improving the appearance of striae.
A statistically significant improvement in POSAS (considering both the objective
and subjective assessments of OSAS and PSAS) after only 2 weeks was evident
in 71% of the subjects. After 8 weeks 97% of subjects showed a noticeable
improvement, with the extent of the improvement 5 times greater than at 2
weeks. A continuous and significant improvement of POSAS over the duration of
the study was noted.