hydration structure of a triple helix collagen peptide molecule in different models on white background

ageing atom atomic ball biochemistry biotech biotechnology cartilage chain chemical chemistry collagen dermal dermatology education elongated extracellular fibre fibril filler glycine hair helix hydration hydrolysed hydroxyproline illustration isolated keratin matrix microfibril molecular molecule peptide proline protein rendering skin structure supplement surgery triple tropocollagen wound wrinkle