The purpose of this study is to assess the use of oral Terminalia chebula fruit extract on the gut microbiome and skin biophysical properties. The fruit is commonly used for skin treatments in India. It is thought to have antioxidant properties, reduce inflammation and affect the microorganisms in the gut. The information the investigators will learn from this study may indicate how and if oral dosing can affect the skin and gut microbiome. This may lead to an improved understanding of the skin and determine whether these oral products are effective for improving the skin's appearance.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
58
Oral TC fruit extract supplement taken by mouth twice per day
Oral placebo taken by mouth twice per day
Applied to both forearms and dorsal hands
Applied to both forearms and dorsal hands
Integrative Skin Science and Research
Sacramento, California, United States
Stool microbiome diversity
Stool is collected and analyzed for species of bacteria through nucleic acid sequencing.
Time frame: 8 weeks
Sebum production
Delfin Sebumeter: 0-150 micrograms/cm\^2
Time frame: 8 weeks
Transepidermal water loss
Delfin Vapometer 0-300g/m\^2h
Time frame: 8 weeks
Facial pigmentation
SkinColorCatchRGB range: 25-246 per channel
Time frame: 8 weeks
Facial redness - Device Based
SkinColorCatch colorimeter RGB range: 25-246 per channel
Time frame: 8 weeks
Facial wrinkles
BTBP Clarity Mini 3D camera: Wrinkle severity (depth and width measurement in unitless units)
Time frame: 8 weeks
Facial shine
BTBP Clarity Mini 3D: (Surface reflection measured in unitless units)
Time frame: 8 weeks
hand and arm pigmentation
SkinColorCatch colorimeter RGB range: 25-246 per channel
Time frame: 8 weeks
hand and arm redness
SkinColorCatch colorimeter RGB range: 25-246 per channel
Time frame: 8 weeks
Tolerability of Topical Products
Subjective Tolerability Questionnaire is collected
Time frame: 8 weeks
Skin typing questionnaire
Subjective Questionnaire is collected
Time frame: 8 weeks
Ayurvedic typing questionnaire
Subjective Questionnaire is collected
Time frame: 8 weeks
Salivary diurnal cortisol slope
4 point salivary cortisol is measured over the course of a day
Time frame: 8 weeks
Skin Hydration
Delfin MoisturemeterSC 0-150
Time frame: 8 weeks
Facial Redness - Image Based
BTBP Clarity Mini 3D camera
Time frame: 8 weeks
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