A Clinical Trial to Evaluate the Effects of Naila's Collagen Marine Plus Food Supplement on Skin Hydration, Elasticity, Fine Lines and Wrinkles, and Hair and Nail Health

Inclusion criteria

• Healthy adults aged 40-60 years at the time of enrollment.
• Self-reported visible signs of skin aging, including at least one of the following: fine lines, wrinkles, reduced skin firmness or elasticity, or skin dryness.
• Self-reports hair shedding and a desire to improve hair health.
• Willing to take one sachet of the study product daily for 12 weeks as directed.
• Willing to avoid taking any other collagen-containing dietary supplements for the duration of the study.
• Willing to maintain current diet, skincare routine, sleep patterns, and physical activity levels for the duration of the trial.
• Willing and able to submit standardized facial and hair photographs at Baseline and Week 12.
• Has access to a smartphone or digital camera capable of producing photographs.
• Resides in the United States.
• Willing to follow the study protocol and complete all required questionnaires.

Exclusion criteria

• Known allergy or sensitivity to fish, marine-derived products, or any of the study product ingredients (marine collagen, hyaluronic acid, ascorbic acid, biotin).
• Previous diagnosis of a hair loss condition such as alopecia areata, androgenetic alopecia, or telogen effluvium.
• Currently taking any collagen-containing dietary supplements, or planning to start taking any collagen supplements in the next 12 weeks.
• Any current uncontrolled chronic medical condition that would prevent the participant from safely completing the study protocol.
• History of a diagnosed dermatological condition that significantly affects facial skin appearance (e.g., severe eczema, psoriasis, rosacea, or active acne) and could confound assessment of skin aging outcomes.
• Use of prescription retinoids, injectable dermal fillers, botulinum toxin, chemical peels, laser skin treatments, or other professional aesthetic procedures on the face within 3 months prior to enrollment or planned during the study period.
• Currently pregnant, breastfeeding, or planning to become pregnant during the study period.
• Currently participating in another research study or planning to participate in another study during this study's duration.
• Any condition that, in the judgment of the investigator, would make the participant unsuitable for inclusion in the study.