French personal care ingredient maker Silab has taken the wraps off Deolya, a natural deodorant and soothing active ingredient made from meadowsweet.
Combining hygiene and skin care, it is said to limit odour and relieve irritations in delicate areas of the underarms.
Among the broad diversity of bacteria of the cutaneous microbiota, certain species stand out by their ability to produce odorous molecules. In particular, this is the case of Staphylococcus hominis.
ISilab developed an original modeling study that demonstrated quantitative (increased abundance) and qualitative modifications (increased enzymatic activity) of S. hominis strains sampled from the axillary microbiota of malodorous volunteers subjected to physical activity, compared to a non-odorous panel.
In response to this problem, Deolya limits the excessive abundance of S. hominis in the axillary cutaneous microbiota and targets the enzymatic activity of this bacterial species.
The active ingredient thus has a significant action on the source of perspiration odour while leaving the microbial diversity of this skin zone unaffected.
Tested in a Caucasian panel of both sexes participating in a physical activity, Deolya was found to reduce perspiration odour by 58% as of the first application.
This efficacy, assessed by an olfactory evaluation from an expert panel qualified in sensorial measurement, was confirmed at the molecular level by a significant 76.3% reduction of the malodorous 3M3SH thiol.
These effects are also observed after seven days of daily use and without having applied the deodorant Deolya in the morning before the physical activity session, underlining the immediate and long-term effect of the deodorant.
At the same time, Deolya reduces inflammation, thus significantly decreasing the frequency of unpleasant underarm sensations appearance, daily but also after shaving or epilation (after 28 days of use).
In addition, the active ingredient strengthens the barrier function, resulting in vivo in an improvement of transepidermal water loss of underarm skin.
Silab has harnessed the tellimagrandin-type ellagitannins and proanthocyanidols found in meadowsweet (Spiraea ulmaria L.), giving Deolya a unique polyphenolic profile.
Obtained from French suppliers certified for organic agriculture and traced back to the harvest site, this raw material complies with Silab’s criteria for traceability and sustainability.
