Trial centre
proDERM Institute for Applied Dermatological Research, Hamburg, Germany.
Study 1: Trained raters
Objective
To assess the rate of absorption of Bio‑Oil Skincare Oil after standardised application and rubbing in.
Sample
Subjects: 22 trained raters (21 female and 1 male). Test site: test products applied to the volar forearm of all raters.
Methodology
Double-blind, randomised and controlled. Bio‑Oil Skincare Oil and a reference oil were applied to assigned test areas on the volar forearms of raters. Raters performed 100 cyclic movements at a defined speed. Raters then rated the absorption of the products on a 5-point scale from ‘very slow absorbing’ to ‘very fast absorbing’. Sebumeter measurements, to assess the amount of oil on the skin, were taken at 2 time points; before application and 2 minutes after product application.
Result
The absorbency of Bio‑Oil Skincare Oil into the skin was assessed as ‘very fast’ or ‘fast’ by the majority (77.3%) of trained raters. This was verified through instrumental measurement with sebumeter readings at the second time point showing that the amount of Bio‑Oil Skincare Oil left on the skin was significantly lower than compared with the reference oil.
Study 2: Random participants
Objective
To assess the rate of absorption of Bio‑Oil Skincare Oil after standardised application and rubbing in.
Sample
Subjects: 100 participants (97 female and 3 male). Test site: test products applied to the volar forearm of all participants.
Methodology
Double-blind, randomised and controlled. Bio‑Oil Skincare Oil and a reference oil were applied to assigned test areas on the volar forearms of participants. Participants rubbed in the test product for 1 minute each. Participants then rated the absorption of the products on a 5-point scale from ‘very slow absorbing’ to ‘very fast absorbing’.
Result
The absorbency of Bio‑Oil Skincare Oil into the skin was assessed as ‘very fast’ or ‘fast’ by the majority (72%) of participants.
