MALE GROOMING
effects in body odour control. The explanation of this result is in mechanism of action of magnesium minerals that includes prevention of body odour formation but also some features that reduce body odour even when it is already formed, like neutralization of smelly, short volatile fatty acids and their absorption. Consumer tests confirm 84% of volunteers
noted this long-lasting effect, which is one of the most important requirements when it comes to deodorant application. It is possible to insert magnesium minerals
in sprays and milks with extraordinary light feel as indicated in Figure 6, where recommended dosage is between 2.5-5%. The percentage of its use increases when formulating roll-ons in the form of oil-in-water emulsion and recommended dosage is between 5-7.5%. It is also possible and quite interesting
to formulate water-in-oil emulsions with magnesium minerals with recommended dosage between 5-10%. These textures will be surprisingly warm and comfortable on the skin, easy to spread and absorb. The concentration of 15-20% can be used in deodorant formats like powders, sticks and unwrapped solid bars. The combination of caprylyl glyceryl
ether and magnesium mineral has been tested at various concentrations on the most representative bacteria strains responsible for body odour. As shown in Table 2, the synergy of Caprylyl Glyceryl Ether and magnesium minerals is highly recommended to achieve the best control on bacteria growth.
TABLE 2: ANTIMICROBIAL ACTIVITY ON THE MOST REPRESENTATIVE STRAINS RESPONSIBLE FOR BODY ODOUR
Formulation/Bacteria Time for challenge test
Blank 20% CareMag D 15% CareMag D 1% Velsan CGE
15% CareMag D + 0.5% Velsan CGE 15% CareMag D + 1.0% Velsan CGE 10% CareMag D + 0.5% Velsan CGE 10% CareMag D + 1.0% Velsan CGE 5% CareMag D + 0.5% Velsan CGE 5% CareMag D + 1.0% Velsan CGE
Log reduction for bacterial growth
Formula proposal for various deodorant format Figure 6 shows different format possibilities that consider physical features of magnesium minerals as white, insoluble, silky powder and that high efficacy is obtained by synergy of Caprylyl Glyceryl Ether and magnesium minerals. It is possible to create completely transparent deodorant roll-on gels by using Caprylyl Glyceryl Ether alone.
<1 log 1-2 log 2-4 log >4 log reduction By using the most efficient synergy of
5-10% magnesium mineral and 0.5-1% of Caprylyl Glyceryl Ether, it is possible to create numerous textures like sprays, emulsions in roll-on and gel, creams and mousses. For creation of formats like W/O emulsions, sticks and solids it is recommended to use higher levels of magnesium minerals, which can be reinforced with 0.5-1% of Caprylyl Glyceryl Ether for long lasting performance without
Corynebacterium jeikeium 6h
24h 48h
Brevibacterium linens 6h
24h 48h
Strphylococcus hominis 6h
24h 48h
53
www.personalcaremagazine.com
September 2022 PERSONAL CARE
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