The Types dimension of market taxonomy classifies collagen by source and manufacturing process, influencing cost structure, functional properties, and end‑use suitability. Bovine collagen remains the largest source, supplying roughly 45 % of total volume due to its high yield and established supply chain; it is favoured in food and supplement categories for its balanced amino‑acid profile. Porcine collagen follows with about 25 % share, offering comparable bioavailability but facing tighter cultural restrictions, limiting its penetration in certain geographic markets. Marine collagen captures approximately 15 % of the market, distinguished by lower molecular weight peptides that enhance skin‑penetration efficacy, thereby commanding premium pricing in personal‑care and nutraceutical segments. Chicken collagen contributes near 10 %, primarily used in cartilage‑support products because of its type‑II collagen concentration. Recombinant collagen—produced via microbial expression systems—holds a nascent but rapidly growing 5 % share, valued for its purity, consistency, and suitability for medical‑grade applications where animal‑derived variability is unacceptable. Each type’s distinct characteristics dictate its relative weight within the broader collagen market.