SILICONES
Nano olive oil as potential silicone substitute
Lại NamHải, Đặng Thị Hồng Ngọc, Hoàng Thị Ca Ly - Wakamono
The combination of nanotechnology and organic ingredients in the cosmetic industry results in more advantageous outcomes than traditional methods. In 2020, Nam Hai Lai et al, in the ‘Process for producing micro emulsion system of Nano essential oil’ study,1
described a process
for producing a micro- emulsion system of nano essential oil, which allows the formation of uniformly-sized droplets capable of dissolution and long-term stability in water with no activity or structure changes. This helps to increase the use
efficiency of essential oils, namely increasing the absorption and bioavailability that are applicable on an industrial scale. Thus, nanotechnology improves stability, high absorption, and creates a water- soluble oil system for cosmetic products. Accordingly, Wakamono Corporation
of Vietnam is developing Nano Olive Oil featuring triglycerides that retain the oil’s abilities such as nutrition, moisturising, keeping hair glossy, and safety. These have been evaluated by ten studies at independent laboratories. The purpose of the tests is to provide an efficacy comparison between a shampoo with Nano Olive Oil and other shampoos containing silicone products. As the following results show, these tests
illustrate that Nano Olive Oil has more efficacy and potential than products containing silicone, which is an environmental problem the world is facing. Furthermore, the antioxidant and UVA protection capabilities of Nano Olive Oil
TEST 1: Samples
A B C
30 20 10 0
Contents
C + 3% Nano Olive Oil C + 3% dimethicone Shampoo contents
21.110 20.467 25.180
A ■ B■ C■ 24.813
23.600 23.450
25 20 15 10 5 0
-5 -10 Before use After use Figure 1: Hair gloss and rate of change between sample A, sample B and sample C
www.personalcaremagazine.com -6.956 Rate of change (%) = (after-before)/before*100
Test 1: Hair gloss test This test of hair gloss, comparing Nano Olive Oil to silicone, was conducted by Daebong Life Science Co., Ltd. Hair gloss and rate of change before and after treatment were measured with a hair gloss analyser model used with three shampoo samples: (A) shampoo contents + Nano Olive Oil 3%; (B) shampoo contents + 3% dimethicone; (C) shampoo contents.
Results The brightness index (Luster BNT) of sample A was significantly changed compared to sample B and sample C (Figure 1). Shampoo containing 3% Nano Olive Oil proved to be more effective for healthy
hair gloss comparing with shampoo containing dimethicone 3% and shampoo contents.
were substantiated by a significant reduction of reactive oxygen species (ROS) levels compared to the untreated, UVA-exposed control. Additionally, the results indicated the
sample at the tested doses did not show any cytotoxicity effect. According to the test results, Nano Olive Oil is a natural antioxidant that can protect hair from harmful factors such as sunlight, pollution, cosmetic treatments, and grooming practices.
Remarks Test group
Positive control group Negative control group
A ■ B■ C■ 20.807 12.652
Test 2: Hair friction test This test of hair friction, comparing Nano Olive Oil to silicone, was conducted by Daebong Life Science Co., Ltd. Hair friction and hair friction rate of change before and after treatment were measured by the brush force meter model between three shampoo samples: (A) shampoo contents + 3% Nano Olive Oil; (B) shampoo contents + 3% Dimethicone; (C) shampoo contents.
Results By combing measurement, hair friction of sample A is lower than sample B and sample C, with the rate of change before and after treatment are 14.392%, 21.435%, 35.469%, respectively (Figure 2). Treatment by shampoo containing 3% Nano Olive Oil improve hair smooth when compared to shampoo containing 3% dimethicone and regular shampoo contents.
Test 3: Sensorial analysis – Consumer preference An in vivo half-head test was conducted by professional hairdressers on 20 participants, randomised, double-blind, every other day use for one week to analysis the sensory differences between shampoo containing 1% Polyquaternium-7 and shampoo containing a mix of 3% Nano Olive Oil and 0.5% Polyquaternium-7.
Results The evaluation results showed that the hair strength’s feeling was greater between the shampoo containing a mix of 3% Nano Olive Oil and 0.5% Polyquaternium-7, and the shampoo
November 2022 PERSONAL CARE
61
BNT
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