ClinicalTrials.gg
CompletedNCT06755892TO-COSKIN3Updated Oct 2, 2025

The Effect of 16-week Dietary Intake of Food Supplements Containing Collagen and MSM on Skin

An interventional study of ColMSM-HL and Placebo syrup in Dermis Density, Wrinkles and Dermis Thickness, sponsored by VIST - Faculty of Applied Sciences. Completed at 1 site in Slovenia. Open to female participants aged 40 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-10-02.

Sponsored by VIST - Faculty of Applied Sciences · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
139
Allocation
Randomized
Ages
40 Years to 65 Years
Sex
Female
01

Study summary

The aim of the study is to compare the effects of multiple-dose 16 weeks daily dietary supplementation with 5 g or 3 g of collagen in combination with 1 g or 1.5 g of MSM and 80 mg vitamin C (see 1.2. Investigational and placebo product profile) on skin in healthy human subjects in comparison to placebo product. The main objective is to show that test products have beneficial effects on dermis density, and also on other skin parameters and to investigate differences in the effects among test products.

Read the detailed description

Single centre, randomized, double-blind, placebo-controlled, one-period effectiveness study will include 135 subjects. Subjects will be divided in five groups, 27 in each. Test group 1 (IP1 group) will receive investigational product 1 (IP1, daily dose 25 mL: collagen 5 g, MSM: 1,0 g, vitamin C: 80 mg), test group 2 (IP2 group) will receive investigational product 2 (IP2, daily dose 25 mL: collagen 3 g, MSM: 1,5 g, vitamin C: 80 mg), test group 3 (IP3 group) will receive investigational product 3 (IP3, daily dose 25 mL: collagen 3 g, MSM: 1,0 g, vitamin C: 80 mg), test group 4 (IP4 group will receive investigational product 4 (IP4, daily dose 25 mL: collagen 3 g, vitamin C: 80 mg) and the placebo group will receive placebo product without those active ingredients (25 mL: 0 g collagen, 0 g MSM). Participants will test continuous administration of placebo or investigational products for 16 weeks to demonstrate and assess multiple-dose effects.

02

Conditions studied

  • Dermis Density
  • Wrinkles
  • Dermis Thickness
  • Skin Texture
  • Skin Elasticity
  • Skin Redness

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03

In context

Erythema

131 studies on the registry are indexed under Erythema; 17 are open to participants now.

This study's enrollment of 139 is above the median of 50 across 114 interventional studies indexed under Erythema.

Browse Erythema studies →

Lead sponsor

VIST - Faculty of Applied Sciences is the lead sponsor of 14 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Caucasian female volunteers aged between 40 and 65 years at the time of the signature of form (ICF),
  • Signed Informed consent form (ICF),
  • Fitzpatrick skin phototypes I-IV,
  • Signs of skin aging,
  • In good general health condition,
  • \< 35
  • Willingness to avoid a consumption of any food supplements containing methylsulfonylmethane (MSM), antioxidants, collagen and other protein-based food supplements during the study,
  • Willingness to follow all study procedures and keeping a diary during the study (to follow their compliance and palatability).
  • Willingness to maintain their living habits and to not begin or change any oestrogen or progesterone therapies,
  • Willingness to avoid shaving/depilation of their arms during the study,
  • Willingness not to change cosmetic treatment routine during the study,
  • Willingness to avoid rejuvenation treatments during the study.

Exclusion criteria

Exclusion criteria:

  • Pregnancy or breastfeeding,
  • Known or suspected allergy to any ingredient of the tested products,
  • Changes in dietary habits and dietary supplementation in the last three months prior to inclusion,
  • Regular use of food supplements containing MSM, antioxidants, collagen or other protein-based food supplements in the last three months prior to inclusion,
  • Veganism,
  • Changes in cosmetic facial and body care routine in the last month prior to inclusion,
  • Diagnosed and uncontrolled/untreated/unregulated disease,
  • Any history of serious metabolic disease, digestive tract disease, liver disease, kidney disease, haematological disease,
  • Intake of drugs with any impact on skin reactions (e.g., , antihistamines, and immunomodulators),
  • Any clinically significant acute or chronic skin diseases,
  • Skin pigmentation disorders on measuring sites,
  • Anticipated sunbathing or solarium visits before or during the study,
  • Invasive rejuvenation treatments (e.g. needle rollers, needle mesotherapy, deep/medium-deep chemical peels, laser therapy etc.) in the last 4 months prior to study entry,
  • Non-invasive rejuvenation treatments (e.g. radiofrequency, electrotherapy, ultrasound, IPL therapy) in the last month prior to study entry,
  • Shaving/depilation of the arms in the last 14 days before inclusion,
  • Mental incapacity that precludes adequate understanding or cooperation.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
139 participants (actual)

Study arms

  • Active comparator
    IP1 group

    Participants will receive investigational product 1 containing collagen (5 g/ 25 mL), MSM (1.0 g/ 25 mL) and vitamin C (80 mg/ 25 mL) for 16 weeks.

    Dietary Supplement: ColMSM-HL

  • Active comparator
    IP2 group

    Participants will receive investigational product 2 containing collagen (3 g/ 25 mL), MSM (1.5 g/ 25 mL) and vitamin C (80 mg/ 25 mL), 25 mL/daily for 16 weeks.

    Dietary Supplement: ColMSM-LH

  • Active comparator
    IP3 group

    Participants will receive investigational product 3 containing collagen (3 g/ 25 mL), MSM (1.0 g/ 25 mL) and vitamin C (80 mg/ 25 mL), 25 mL/daily for 16 weeks.

    Dietary Supplement: ColMSM-LL

  • Active comparator
    IP4 group

    Participants will receive investigational product 4 containing containing collagen (3 g/ 25 mL) and vitamin C (80 mg/ 25 mL), 25 mL/daily for 16 weeks.

    Dietary Supplement: Col-L

  • Placebo comparator
    Placebo group

    Placebo group participants will receive placebo syrup without active ingredients (0 mg of collagen, 0 mg of MSM and 0 mg of vitamin C), 25 mL/daily for 16 weeks.

    Dietary Supplement: Placebo syrup

Interventions

  • Dietary supplementColMSM-HL

    Participants will test continuous administration of investigational product for 16 weeks.

    Also known as: Investigational product 1

  • Dietary supplementPlacebo syrup

    Participants will test continuous administration of placebo product for 16 weeks.

  • Dietary supplementColMSM-LH

    Participants will test continuous administration of investigational product for 16 weeks.

    Also known as: Investigational product 2

  • Dietary supplementColMSM-LL

    Participants will test continuous administration of investigational product for 16 weeks.

    Also known as: Investigational product 3

  • Dietary supplementCol-L

    Participants will test continuous administration of investigational product for 16 weeks.

    Also known as: Investigational product 4

06

What researchers measure

Primary outcomes

  1. Change of dermis density from baseline in all test groups in comparison to placebo group after 16 weeks of dietary supplementation

    Significant change of dermis density from baseline in test groups, in comparison to placebo group after 16 weeks of dietary supplementation with study product is expected. Dermis density will be assessed through ultrasonographic dermis intensity measurement. Differences in change of dermis density between test groups under primary objective conditions will also be evaluated.

    Time frame: 16 weeks

Secondary outcomes

  1. Change of wrinkle volume from baseline in test groups, in comparison to placebo group after 16 weeks of dietary supplementation

    Assessment of the effects of investigational product on periorbital wrinkles after 16 weeks of dietary supplementation will be done using topography measurements. Differences between test groups will also be evaluated.

    Time frame: 16 weeks

  2. Change of skin texture from baseline in test groups, in comparison to placebo group after 16 weeks of dietary supplementation

    For assessments of skin texture topography roughness measurements (Ra) will be performed. Significant changes from baseline in test groups, in comparison to placebo group after 16 weeks of dietary supplementation is expected. Differences between test groups will also be evaluated.

    Time frame: 16 weeks

  3. Change of skin redness from baseline in test groups, in comparison to placebo group after 16 weeks of dietary supplementation

    Assessment of the effects of the investigational product on skin redness after 16 weeks of dietary supplementation. Skin redness (redness score, variation and uniformity) will be measured using Antera 3D CS. Differences between test groups will also be evaluated.

    Time frame: 16 weeks

  4. Change of dermis thickness from baseline in test groups, in comparison to placebo group after 16 weeks of dietary supplementation

    Significant change of dermis thickness from baseline in test group, in comparison to placebo group after 16 weeks of dietary supplementation with study product is expected. Dermis density will be assessed using ultrasonography. Differences between test groups will also be evaluated.

    Time frame: 12 weeks

  5. Change of skin elasticity from baseline in test groups, in comparison to placebo group after 16 weeks of dietary supplementation

    Elasticity measurements will be performed. Significant changes from baseline in test groups in comparison to the placebo group after 16 weeks of dietary supplementation are expected. Differences between test groups will also be evaluated.

    Time frame: 16 weeks

07

Study locations

1 site
  • VIST - Faculty of Applied Sciences, Institute of Cosmetics
    Ljubljana, 1000, Slovenia
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2025 to primary completion in Jun 2025, 4 months.

Of 23 non-industry interventional studies with no phase under Erythema, half reached primary completion within 10 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 24. This study's 4 months is below that.

Counting every sponsor, half of 43 studies reached it within 3 months; a quarter within 1 and three quarters within 11.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 24, 2024
First posted
Jan 1, 2025
StartActual
Jan 27, 2025
Primary completionActual
Jun 17, 2025
CompletionActual
Jun 17, 2025
Last update
Oct 2, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 2, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06755892
Lead sponsor
VIST - Faculty of Applied Sciences
Collaborators
Tosla d.o.o., Slovenian Research and Innovation Agency
Responsible party
Sponsor
First posted
Jan 1, 2025
Start date
Jan 27, 2025
Primary completion
Jun 17, 2025
Completion
Jun 17, 2025
Last update
Oct 2, 2025

Study contacts

Katja Žmitek, PhD
study director · Head of Reasearch Group

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2025. You cannot join it, but the record below documents what was studied.

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