A Clinical Trial to Evaluate the Effects of Cowboy Colostrum on Gut Health, Body Composition, Hair Growth, and Skin Appearance

NCT07756866 | Completed

• 2 other identifiers: 20776legacy-20776
• Study Type: interventional
• Target: 35
• Locations: 1 country
• Sites: 1

Brief Summary

This study evaluates the effects of Cowboy Colostrum bovine colostrum powder on gut health, body composition, hair growth, and skin appearance in generally healthy adults aged 21-47 with concerns in these areas. The trial is a single-arm, unblinded, virtual study conducted over 12 weeks in 35 participants who will use the test product daily. Participants will complete questionnaires and provide weight and waist circumference measurements at Baseline, Week 4, Week 8, and Week 12. The primary focus is on changes in weight and waist circumference, while secondary outcomes include participants' perceptions of gastrointestinal health, physical activity, hair growth, skin appearance, and overall health and well-being.

Conditions

Gut Health; Body Composition; Hair Growth; Skin Appearance; Healthy Weight Management; Gastrointestinal Health

Outcome Measures

Primary Outcomes (2)

• Change in Body Weight

  Self-reported body weight measured daily for three consecutive days at each time point using a Withings smart scale; the average of the two closest values is used

  Baseline, Week 4, Week 8, and Week 12

• Change in Waist Circumference

  Self-reported waist circumference measured using a tape measure

  Baseline, Week 4, Week 8, and Week 12

Secondary Outcomes (13)

• Change in Gastrointestinal Symptoms

  Baseline, Week 4, Week 8, and Week 12

• Change in Digestion-associated Quality of Life

  Baseline, Week 4, Week 8, and Week 12

• Change in Physical Activity

  Baseline, Week 4, Week 8, and Week 12

• Participants' Perception of Bloating

  Baseline, Week 4, Week 8, and Week 12

• Participants' Perception of Bowel Movement Frequency

  Baseline, Week 4, Week 8, and Week 12

Study Arms (1)

Cowboy Colostrum

EXPERIMENTAL

Dietary Supplement: Cowboy Colostrum

Interventions

Cowboy Colostrum DIETARY_SUPPLEMENT

All participants take two scoops of Cowboy Colostrum bovine colostrum powder daily (3.4 g serving containing 3 g bovine colostrum, organic Madagascar vanilla powder, monkfruit extract, and sea salt), either directly in the mouth or frothed into cold or warm liquids such as water, iced coffee, iced matcha, smoothies, yogurt, or oatmeal at any time of day for 12 weeks. The product must not be added to any liquid over 140 degrees.

Cowboy Colostrum

Eligibility Criteria

• Age: 21 Years - 47 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Be male or female
• Be aged 21-47
• Anyone with concerns regarding all of the following over the past four weeks: gut health, healthy weight management, hair growth, and skin appearance
• BMI 25-33 kg/m²
• Anyone who is generally healthy and does not live with any uncontrolled chronic disease
• Anyone who is physically active at least once per week
• If taking any products, herbal remedies, over-the-counter medications, or supplements that target weight, gut health, physical activity, hair growth, or skin appearance, has been doing so consistently for three months and is willing to maintain this routine for the study duration
• Willing to maintain their current diet and sleep schedule for the duration of the study
• Willing to use the same skincare routine and make-up products for at least one month prior to the study, and willing to maintain this routine for the duration of the study
• Resides in the United States

You may not qualify if:

• Anyone with pre-existing chronic conditions that would prevent participants from adhering to the protocol, including oncological and psychiatric disorders
• Anyone who has undergone any surgeries or invasive treatments in the last six months, or has any planned during the study period
• Has had any major illness in the last three months
• Anyone who has taken an antibiotic in the last three months
• Anyone currently taking a weight loss medication, including but not limited to Wegovy, Mounjaro, and Ozempic
• History of an autoimmune disorder, diabetes, or endocrine disorder
• Food intolerances, allergies, or sensitivities such as dairy allergy and lactose intolerance
• Has a known history of severe digestive disorders like acid reflux, Irritable Bowel Syndrome (IBS), Irritable Bowel Disease (IBD), Crohn's disease, or gastrointestinal tract surgeries
• Anyone diagnosed with a skin or hair condition
• Anyone who does not consume animal products for any reason
• Currently undergoing hair treatment or using other hair growth/thickening products
• Currently taking any prescription medication for hair loss
• Anyone with any conditions that affect the hair or scalp (e.g., alopecia areata)
• Anyone planning to undergo facial treatments during the study period, including Botox, dermal fillers, and chemical peels
• Anyone with any allergies or sensitivities to any of the study product ingredients

Sponsors & Collaborators

• Cowboy Colostrum: lead
• Citruslabs: collaborator

Study Sites (1)

Citruslabs

Las Vegas, Nevada, 89101, United States

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: August 5, 2026
• First Posted: August 11, 2026
• Study Start: July 7, 2025
• Primary Completion: November 18, 2025
• Study Completion: November 18, 2025
• Last Updated: August 11, 2026

Record last verified: 2026-08

Locations

US (1)