Previous studies on skin health with Lactic acid bacteria (LAB) have been published for many years, including prevention of skin diseases and improvement of skin conditions. In this clinical study, the investigators researched the benefit effects of heat-killed Lactobacillus paracasei shampoo on scalp and hair healthcare.
To evaluate the safety and efficacy of hair products containing probiotics
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
21
Probiotic Shampoo
Shampoo base
Chia Nan University of Pharmacy and Science
Tainan, Taiwan
Skin Microbiota
The changes of scalp microbiota will be evaluated by NGS or qPCR analysis at baseline and different timepoint post-intervention.
Time frame: Baseline, 4 weeks and 8 weeks
The sebum on scalp
The scalp sebum will be measured by Sebumeter SM815 (C+K, Germany) at baseline and different timepoint post-intervention.
Time frame: Baseline, 2 weeks, 4 weeks, 6 weeks, 8 weeks, 12 weeks, 20 weeks and 28 weeks
The scalp flakes (dandruff)
The scalp flakes will be evaluated by D-SQAME ® DANDRUFF TESTER at baseline and different timepoint post-intervention.
Time frame: Baseline, 2 weeks, 4 weeks, 6 weeks, 8 weeks, 12 weeks, 20 weeks and 28 weeks
The hair density (hairs/scalp area)
The hair number in a constant scalp area will be measured by Aramo TSII skin/hair diagnosis (Aramhuvis Co., Ltd. Korea) at baseline and different timepoint post-intervention.
Time frame: Baseline, 4 weeks, 8 weeks, 12 weeks, 20 weeks and 28 weeks
Adverse Event
Any adverse event, such as erythema,rash, itching and so on will be recorded during the intervention.
Time frame: Baseline and 28 weeks
Single application closed patch epicutaneous test under occlusion
Probiotics on skin will be evaluated by Human Patch test. The Human Patch test method according to the Guidelines of Human Patch test Standards for Cosmetics, Taiwan Food and Drug Administration, 2019 edition.
Time frame: 1 hour, 24 hours and 48 hour
Repeated application closed patch epicutaneous test under occlusion
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The irritation potential of probiotics on skin will be evaluated by Human Patch test. The Human Patch test method according to the Guidelines of Human Patch test Standards for Cosmetics, Taiwan Food and Drug Administration, 2019 edition.
Time frame: Day 1, 2, 3, 4 and 5