Condition category
Skin and Connective Tissue Diseases
Date applied
Date assigned
Last edited
Prospectively registered
Overall trial status
Recruitment status

Plain English Summary

Background and study aims
Bifidobacteria are bacteria that live in the human gut. They help to improve the digestion of food and suppress the growth of harmful bacteria. Gut bacteria may also have other positive effects on human health. Bifidobacteria and components derived from Bifidobacteria have been studied for their properties in enhancing skin hydration and structure. The aim of this study is to examine the effects of taking Bifidobacterium by mouth on the skin, including wrinkles, dryness and elasticity.

Who can participate?
Korean women aged 30-60

What does the study involve?
Participants will be randomly allocated to one of two groups. Both groups will take a capsule by mouth once a day for 12 weeks. For one group, the capsule will contain Bifidobacterium. For the other, the capsule will be a dummy capsule containing no active ingredient (placebo). The capsules will look the same and neither the participants nor the researchers will know which capsule a participant is taking. 1. Skin wrinkles and hydration are measured at the start of the study and after 4, 8 and 12 weeks

What are the possible benefits and risks of participating?
Participants may not benefit from the study as it is not known whether the test product will improve skin wrinkles or hydration. However, the study will extend the understanding of the effects of oral Bifidobacterium on skin wrinkles and hydration. As for potential risks and disadvantages, blood sampling may cause a hematoma (bruise) or fainting, and the skin measurements and restrictions related to the measurements may cause inconvenience. The test product is not known to cause side effects. There is a small risk of possible allergy or intolerance, as for any dietary product.

Where is the study run from?
Danisco Sweeteners Oy (Finland)

When is the study starting and how long is it expected to run for?
September 2019 to January 2022

Who is funding the study?
Danisco Sweeteners Oy (Finland)

Who is the main contact?
Dr Ja Hyun Ryu

Trial website

Contact information



Primary contact

Dr Ryu Ja Hyun


Contact details

Bangbaejoongang-ro 30
+82 (0)2 597 5415



Additional contact

Ms Laura Huuskonen


Contact details

Sokeritehtaantie 20
+358 (0)40 169 4747

Additional identifiers

EudraCT number

Nil known number

Nil known

Protocol/serial number


Study information

Scientific title

Effects of Bifidobacterium on skin wrinkle, hydration, transepidermal water loss, elasticity and gloss: a randomized, double-blind, placebo-controlled, and parallel clinical trial



Study hypothesis

Consumption of probiotics reduces skin wrinkles and enhances skin hydration in adult women.

Ethics approval

Approved 06/08/2020, DERMAPRO Ltd. Institutional Review Board (IRB) (DERMAPRO Ltd. Institutional Review Board, 4F, Bangbaejoongang-ro 30, Seocho-gu, Seoul, Korea, +82 (0)2 597 5435;, ref: 1-220777-A-N-01-DICN20182

Study design

Randomized double-blind parallel placebo-controlled 12-week intervention study

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details to request a participant information sheet


Skin wrinkles and dry skin


Participants are randomly allocated to one of two treatment groups in equal proportions applying block randomization. Participants take one daily capsule of the test product (Bifidobacterium in microcrystalline cellulose) or placebo (microcrystalline cellulose) for 12 weeks with follow-up visits at 4, 8 and 12 weeks.

Intervention type



Drug names

Primary outcome measure

1. Skin wrinkles measured with PRIMOS® premium from Crow’s feet at 4, 8 and 12 weeks
2. Skin hydration measured from cheek, forearm and back of hand with corneometer and moisturemeter at baseline, 4, 8 and 12 weeks

Secondary outcome measures

1. Transepidermal water loss measured with evaporimeter from cheek, forearm and back of hand at baseline, 4, 8 and 12 weeks
2. Skin elasticity measured with cutometer from cheek at baseline, 4, 8 and 12 weeks
3. Skin gloss measured with SkinGlossMeter from cheek at baseline, 4, 8 and 12 weeks
4. Body composition measured with Inbody 330 analyzer at baseline and 2 weeks
5. Facial image measured using VISIA-CR® skin analysis system at baseline and 4, 8 and 12 weeks
6. Product efficacy assessed using an efficacy questionnaire at 4, 8 and 12 weeks
7. Product usability assessed using a usability questionnaire at 12 weeks

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Korean female subjects aged between 30 and 60
2. Dry skin on their cheek (hydration value is below 48 A.U. by Corneometer®)
3. Skin wrinkles over grade 3 by DERMAPRO standard photograph
4. No chronic or acute disease including skin disease
5. Signed informed consent
6. Cooperative and available for follow-up during the study period

Participant type

Healthy volunteer

Age group




Target number of participants


Participant exclusion criteria

1. Consumed probiotics as dietary supplements, food or beverage products during the last 2 weeks
2. Pregnant, nursing or planning to become pregnant
3. Irritation or symptomatic allergy for food including ingredients of cosmetic, medical and test product.
4. Took oral or topical antibiotics during the previous 3 months
5. Took oral retinoid/steroid drug or topical application included steroid during previous 6 months
6. Use functional cosmetics for improvement of skin wrinkle, hydration and elasticity within 3 months
7. Have an experience on the test site (skin decortications, botox and other skin treatment)
8. Participated in a previous study without an appropriate intervening period (3 months) between studies
9. Have a disease which affects the study (e.g. cardiovascular, kidney, liver, thyroid, gastrointestinal disease, gout)
10. Any skin disease (e.g. atopic dermatitis) at the test site
11. Any chronic disease (e.g. diabetes, asthma, high blood pressure) or psychiatric disorder (e.g. depression, schizophrenia, alcoholism, drug addiction)
12. Take a medicine for the treatment of obesity (e.g. antidepressants, anorectics), contraceptives, hormones or diuretics
13. Drink excessive alcohol (over 30 g alcohol per day)
14. Sensitive or hypersensitive skin
15. Damaged skin in or around the test area which includes sunburn, tattoos, scars or other disfiguration on the test area
16. Abnormal result in screening clinical chemical analysis by medical specialist
17. Problem which may interfere with the aim of the study as judged by the principal investigator

Recruitment start date


Recruitment end date



Countries of recruitment

Korea, South

Trial participating centre

4F, Bangbaejoongang-ro 30, Seocho-gu
Korea, South

Sponsor information


Danisco Sweeteners Oy

Sponsor details

Sokeritehtaantie 20
+358 (0)40 167 8509

Sponsor type




Funder type


Funder name

Danisco Sweeteners Oy

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Planned publication in a high-impact peer-reviewed journal. No additional documents have been published or are planned to be published at the moment.

IPD sharing statement
The datasets generated during and/or analysed during the current study are not expected to be made available due to the investigational product being a food supplement, thus there is no regulatory obligation to supply participant-level data.

Intention to publish date


Participant level data

Not expected to be available

Basic results (scientific)

Publication list

Publication citations

Additional files

Editorial Notes

22/10/2020: Trial's existence confirmed by DERMAPRO Ltd. Institutional Review Board (IRB).