Bio nutrition colla-flex hydrolyzed collagen natural vanilla description: with boswellia, silica and vitamin c hair skin nails bones joint health weight loss natural vanilla flavor colla-flex is a unique blend or hydrolyzed collagen, boswellia, silica and vitamin c designed to promote healthy hair, skin and nails improve joint flexibility, strengthen bones and contribute to healthy weight management. Free of yeast, corn, wheat, soy and most common allergens. Disclaimer these statements have not been evaluated by the fda. These products are not intended to diagnose, treat, cure, or prevent any disease.