Collagen guide. How to choose the right form for skin, hair, nails and joints

Updated June 2, 2026

Collagen is one of the most popular supplements for beauty and wellbeing today. Yet with so many different options, questions naturally come up. Which collagen is best, what’s the difference between marine and animal-derived collagen, is liquid collagen better than powder, and which form actually suits your needs?

For some, skin hydration, elasticity, hair and nail condition matter most. Others are looking for support for an active lifestyle, joint comfort, or everyday wellbeing. That’s why it’s worth understanding not just what collagen is, but which form genuinely fits your goals.

What is collagen and why it matters

Collagen is the most abundant protein in the human body, forming the structural framework of skin, joints, tendons and bones. It’s what keeps skin firm, joints comfortable, and connective tissue strong. Natural collagen production peaks in our twenties and then gradually declines with age, which is why many people turn to supplements to help maintain their body’s collagen levels.

Collagen types – I, II and III

While there are over 20 types of collagen, types I, II and III make up the vast majority found in the human body, and each serves a distinct purpose.

Type I SKIN · BONES · TENDONS

The most abundant type in the body, forming the structural backbone of skin, bones and tendons.

Type II JOINTS · CARTILAGE

Makes up most cartilage, supporting joint cushioning and flexibility.

Type III SKIN · BLOOD VESSELS · MUSCLES

Usually found alongside type I, supporting skin firmness and vascular structure.

What is hydrolyzed collagen

Hydrolyzed collagen — also called collagen peptides — has been broken down into smaller molecules through a process called hydrolysis. This makes it significantly easier for the body to absorb compared to whole collagen molecules, which is why virtually all collagen supplements on the market use the hydrolyzed form.

Marine vs. animal-derived collagen

Animal-derived collagen typically comes from cattle, chicken or pork skin, while marine collagen is extracted from fish skin, bones and scales. Research suggests marine collagen tends to be purer and more bioavailable, largely because its molecular structure closely resembles the collagen naturally found in human skin.

Liquid collagen or powder

Both forms deliver the same hydrolyzed collagen — the choice really comes down to convenience. Powder is flavourless and easy to mix into drinks or food, while liquid collagen comes pre-dosed and ready to drink, often combined with hyaluronic acid and vitamin C for added support.

How and when to take collagen

Consistency matters more than timing — most people take their daily dose at any convenient time, with or without food. To see visible results in skin, hair, nails or joint comfort, it’s best to complete at least one full course, typically 8–12 weeks of regular use.

How to choose the right one

A well-known and convenient option is marine collagen powder, tasteless and easy to add to your daily routine.

If you prefer a liquid form, Biovitup offers two concentrations — liquid marine collagen 10,000 mg for everyday use, or liquid marine collagen 12,500 mg for a higher concentration.

Frequently Asked Questions

Is marine collagen better than bovine collagen?

Both are effective, but marine collagen is generally considered more bioavailable due to its smaller particle size and closer similarity to human collagen.

How long until I see results?

Most people notice initial changes after 4–8 weeks of consistent use, with fuller results typically visible after a complete 8–12 week course.

Sources

  1. Collagen Structure and Stability