Discover how to choose the right collagen supplement for your skin, hair and joints, with pharmacists' tips on finding the right one for you

Collagen is absolutely soaring in popularity, and it's a success that I think is well deserved. Even the experts are clear: collagen can be an extremely effective supplement - especially if you're over 40, and during perimenopause and menopause - if you know how to choose the right one. Finding the right collagen supplement for you is the first and most important step to unlocking all its fabulous benefits for the skin, including a boost to firmness, elasticity and hydration, and even an improvement in muscle tone and joints. But because there are so many different types available, powder vs capsule, bovine vs marine... its hard to know where to start.

"Collagen is one of the most-searched words in beauty and wellness, but also one of the most misunderstood," says Olga Asín, a chemist (pharmacist) specialising in dermocosmetics and nutricosmetics. "Not all collagens are created equal, and not all supplements work in the same way." So how do you figure out the ideal collagen supplement for you? With the help of experts we're going to give you the lowdown so you can understand it all and make the right choice.

Collagen is one of the most abundant proteins in our body and it's essential for keeping our skin firm, as well as joint health, and strong hair and nails. From the time we're around aged 25 to 30, its natural production starts to drop, and that's when many people begin to consider taking a supplement. But how do you know which one to choose from among so many options?

"The first thing we need to understand is that there isn't just one type of collagen. In fact, there are over twenty types in the human body - although the most common ones that we'll consider here for health and cosmetic purposes are type I (e.g. skin, bones, tendons), type II (cartilage) and type III (e.g. organs and young skin)," Olga explains.

Laura Salud, who is a chemist, nutritionist and founder of Salmo Labs, also says: "Not all collagen supplements are created equal. It's crucial to look at the type, origin and the presence of vitamin C to guarantee its effectiveness. Plus, there's something that's key to not compromising [collagen supplement] absorption and benefits: avoiding sugars and sweeteners."

Laura advises that it's essential to understand why you want to take collagen in the first place. Your choice will depend on the areas you want to target and the results you're hoping to achieve.

If you're aiming to improve your skin, hair and nails, opt for a supplement with collagen types I and III, as these are best for stimulating cutaneous collagen production and improving elasticity and firmness.

If the goal is to relieve joint discomfort or prevent wear on cartilage, undenatured type II collagen is likely to be the best option.

According to both experts, you should consider a few aspects that make all the difference between an effective supplement and one that isn't:

The effectiveness of collagen depends on the dose ingested, and powder and liquid formats allow you to take the necessary concentrations in a single serving. With capsules or tablets, the dose is usually insufficient and would require taking too many pills. Powder and liquid collagens also promote better absorption.

Synergy is key when it comes to collagen supplements. Why? Because ingredients like hyaluronic acid, zinc, magnesium and especially Vitamin C can work together with collagen to boost its effectiveness. "Collagen synthesis in the body depends on the presence of vitamin C, and a deficiency will impair collagen production," says Laura Salud. It's a bonus if the collagen supplement is free from added sugars and artificial preservatives. "Both natural sugars and sweeteners negatively affect collagen synthesis and can harm gut flora, which then is going to impact the absorption of nutrients."

Pharmacist Olga explains that hydrolysed collagen is a very safe supplement that's also easy on the stomach, but there are some precautions to keep in mind. "If you're allergic to fish or shellfish, you should avoid formulas with marine collagen. It's also advisable to consult a professional if you're pregnant, breastfeeding or taking regular medication, especially anticoagulants or liver treatments," she advises.

Additionally, some formulas include sweeteners, colourings, or artificial flavours that might not be well-tolerated by people with digestive sensitivities. That's why the nutricosmetics expert believes that it's essential to read labels carefully and choose brands that guarantee quality.

"Collagen can be a fantastic ally for our health and beauty, but choosing the right one is key to getting real results. As a pharmacist, my recommendation is when in doubt consult a specialist, who can guide you according to your goals, age, lifestyle and possible sensitivities," she suggests.

A common final question about collagen, other than how to take it, is when to take it. "The ideal time to take collagen is in the morning on an empty stomach, or between meals, as absorption improves when there are no other proteins present. It's essential to pair it with vitamin C, either included in the formula or taken additionally," says Olga, who adds an important point: consistency is key.

"Results start to appear after eight weeks of daily use. Ideally, you should do cycles of three to six months, with short breaks in between to avoid metabolic adaptation so the collagen stays effective."

At what age should we start taking collagen? "It's a good idea to start supplementing around the age of 30 to 35 as a preventative measure, but it's really between the ages of 45 and 55, coinciding with perimenopause and menopause, when collagen becomes a true anti-ageing treatment," says Olga. "That's when hormonal loss causes an accelerated drop in collagen in the skin, bones and joints. In fact, it's estimated that in the first five years after menopause, a woman can lose up to 30 per cent of her dermal (skin) collagen."

Taking a collagen supplement during perimenopause and menopause isn't just a beauty boost - it not only helps promote younger-looking skin and stronger hair, but also supports your physical well-being.