What is the difference between marine and bovine collagen?
The source – fish or cattle – and the collagen types provided. Marine is generally more expensive and more asked for.
Is there a vegan collagen?
No. Products sold that way provide nutrients intended to support your own production rather than collagen itself.
Powder or capsules?
Powder, generally, because the amounts are measured in grams. Capsules suit anyone who would rather not measure a scoop.
How long should I take it for?
Months rather than weeks. A fortnight is not a fair test.