6 Reasons I Created My Own Collagen After 25 Years as an NHS Doctor (And Why I Recommend It to Women Over 40)

You notice it in the mirror, in your hairbrush, and sometimes when you get up from the sofa.

Your skin looks duller or feels less firm, your hair looks finer, and your joints don’t feel as comfortable as they used to.

When these changes happen together, it can feel as though your body has changed faster than your routine can keep up with.

Collagen acts as the primary structural “glue” or scaffolding that supports the skin and the cartilage, tendons and ligaments involved in movement. Your body produces less as you age, and hormonal changes around menopause can accelerate collagen loss in the skin by up to 30%.

Taking the right collagen supplement can provide your body with collagen peptides it can use to replenish what is lost. Research has explored their ability to support skin hydration and elasticity, reduce hair thinning and improve joint pain over time.

A cheaper supplement can become poor value if you need several servings to get the amount you intended to take.

Two products can both promise a daily collagen routine while providing very different amounts of collagen.

A serving containing 2,000mg gives you one-fifth of the collagen in a 10,000mg serving. At 5,000mg, you’d need two servings to match it.

That matters when you compare prices. A pouch that looks cheaper may not last as long once you account for the amount you’re taking.

Using less collagen also lowers the amount of the main ingredient a brand needs to include. It can reduce production costs and make the headline price more attractive.

I chose 10,000mg of collagen peptides per daily serving of Correxiko. That’s 10g of collagen, with no flavourings or fillers making up part of that amount.

An 8g daily dose has been used in clinical research. However, different formulations have also been studied at lower doses, so there isn’t one minimum amount that determines whether every collagen works.

My approach was to provide a substantial, clearly stated daily dose in one serving, so you know what you’re taking without doubling up on scoops or finishing the pouch sooner than expected.

I chose collagen-rich fish skin, then paid just as much attention to what happened to it next.

Bovine collagen comes from cattle and goes through heavy chemical processing. For Correxiko, I chose marine collagen from the skin of wild-caught cod, haddock and pollock.

Fish skin is naturally rich in collagen, and using it also puts a part of the fish to use that might otherwise go to waste.

I intentionally chose this because it gives you a higher-purity, more sustainable collagen that is easier to absorb than bovine.

The collagen in your scoop needs to become something your body can absorb.

Collagen is a large protein. Hydrolysis breaks it into smaller pieces called peptides, which your digestive system can break down further and absorb.

Correxiko goes through two stages of hydrolysis to create fine collagen peptides.

That extra processing has a clear purpose: preparing the collagen for digestion and absorption. Once absorbed, its amino acids and small peptides become available for your body to use.

It also makes the powder easy to mix into everyday drinks, helping you keep the habit without a gritty, clumpy addition to your morning.

You’re buying collagen to support yourself. You shouldn’t have to take unwanted extras with it.

A sweet, chocolate-flavoured collagen might sound appealing. But it’s worth checking what creates that taste, and how much of each serving is actually collagen.

Depending on the product, you could also be taking added sugar, sweeteners, flavourings, colours or preservatives every day.

Those ingredients don’t increase the amount of collagen you’re getting. And if you’re trying to reduce added sugar or keep your supplements simple, they may be extras you’d rather avoid.

Correxiko contains one ingredient: double-hydrolysed marine collagen peptides.

It’s genuinely unflavoured and mixes smoothly, so your coffee can still taste like coffee, your smoothie keeps the flavour you chose, and there’s no sweetened chocolate or berry taste to work around.

You get your daily collagen without adding sugar, changing your breakfast or creating another routine to keep up with.

The care I’d want for the women closest to me is the care I wanted to put into this product.

I’m a former NHS gut doctor and the founder of Correxiko.

My background is in medicine, and my interest in collagen developed while using it to support patients recovering from surgery.

Over time, I became frustrated by the supplements people were spending their money on: unclear doses, unnecessary ingredients and confident promises that were difficult to judge from the formula.

That frustration became personal when I saw my wife buying products for her hair, skin and joints, and finding that the formulation didn’t live up to the impression created by the marketing.

She deserved better, and so did my patients.

That led to Correxiko: 10,000mg of double-hydrolysed marine collagen peptides per daily serving, with nothing else added.

Whichever collagen you choose, make sure to consider the factors I have mentioned in this article.

My mission has been to create the highest quality collagen on the market. One that I’d be proud to give my patients, wife and children.

If I educate others in the process, and they find another product that follows the same principles, then I would have still done my job.

That said, if you do want to try our collagen, you can check it out below.