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Dull hair, brittle nails or skin lacking comfort: there is no shortage of hair skin nail supplements, but their formulas do not all target the same needs. Between high-dose biotin, hydrolysed marine collagen, sugary gummies and promises of rapid absorption, it is easy to pay for a marketing message rather than a clear, coherent composition.
Before buying a hair supplement or a formula dedicated to your skin and nails, three pitfalls deserve your attention:
A food supplement is not a substitute for a varied diet or medical supervision. If you are experiencing significant, sudden or persistent hair loss, it is better to ask a healthcare professional for advice rather than relying solely on a course of supplements.
The first figure to compare is the amount taken daily, not the number highlighted on the front of the product. A biotin hair supplement may provide 450 µg per gummy, 5 000 µg in two gummies or 12 000 µg per tablet. These figures correspond respectively to 900 %, 10 000 % and 24 000 % of the nutrient reference values stated in the product information.
Biotin at 10 000 µg or more should be chosen carefully. Biotin can affect the results of certain blood tests: tell your doctor or the laboratory before having a blood test and follow their advice about whether you should stop taking the product temporarily.
For a more balanced formula, also check the presence and dosage of zinc for hair, selenium for hair, vitamin C and other vitamins intended for hair. Authorised claims in the European Union relate to normal functions, such as the maintenance of normal hair, skin or nails. They are not a promise to treat hair loss or alopecia.
Marine collagen comes from fish, so it is an allergen that must be taken into account. When described as hydrolysed marine collagen, it consists of peptides obtained through hydrolysis and is generally sold as a powder, capsules or a liquid solution.
Compare in particular:
Some consumers look for collagen for joints, while others prioritise their skin, hair and nails. In every case, distinguish between the composition actually detailed on the label and the advertising claims. Marine collagen is not suitable for people with a fish allergy and is not compatible with a vegan diet.
Capsules are convenient and have no taste, but may require two to four doses a day. Powder allows you to reach several grams of collagen in a single measure, in return for preparation and a flavour that you need to enjoy. Liquid shots are easy to carry, but generally need to be consumed soon after opening, in accordance with the instructions.
Biotin gummies are pleasant to chew, but sometimes contain sugar or glucose syrup. Conversely, some collagen powders are sugar-free and sweetened with stevia. To compare prices, calculate the cost per day and check the actual length of the course: 60 capsules taken at two a day provide 30 days’ use, while 120 gummies consumed at the same rate cover around 60 days.
Why it suits this profile : A concise, easy-to-understand formula for starting a 30-day routine, taking two capsules a day and with no flavouring.
The product information clearly details the amount per dose : 50 µg of biotin, 10 mg of zinc and 55 µg of selenium, providing 100 % of the NRV for each.
Vegetable HPMC capsules, free from titanium dioxide, artificial colours and GMOs, with a formula described as vegan.
Why it suits this profile : The liquid format in individual sticks is ideal for anyone who wants a quick serving, without a spoon or preparation.
The dose is specified for each 25 ml stick : 12 500 mg of hydrolysed marine collagen, 80 mg of vitamin C and 20 mg of hyaluronic acid.
30 ready-to-drink sticks with biotin and vitamin D ; however, the product contains fish and 1.6 g of sugar per serving.
Why it suits this profile : One tablet a day and a pack of 365 units provide everything you need to establish a long-term routine.
The high biotin dose is clearly stated per tablet : it should be disclosed before a blood test and is not suitable for every use.
Vegan tablets, free from lactose, GMOs and artificial flavourings, with an especially simple daily serving.
Why it suits this profile : With a raspberry flavour, these gummies may appeal to adults who dislike capsules and prefer a chewable serving.
The serving is set at two gummies a day and the formula provides 5 000 µg of biotin, with a specific warning regarding blood tests.
A pectin base with additional vitamins C, E, A, D3, B6 and B12, as well as selenium and iodine ; the formula contains sugar.
We have brought together a comprehensive, real-time updated selection of products that meet these demanding selection criteria and European safety requirements.
It depends on the product: some bottles cover 30 days, while others last two months or a year. Follow the stated dose and calculate the cost over the actual duration of the pack. There is no need to automatically extend a course if you experience discomfort or if your circumstances warrant medical advice.
Not necessarily. To achieve their texture and flavour, gummies often contain sugar or glucose syrup. Check the ingredients list and nutrition table. A sugar-free collagen powder or capsule formula may be more suitable for someone monitoring their sugar intake.
It depends on the combined doses and any other supplements you are taking at the same time. Combining several formulas can unnecessarily increase your intake of certain nutrients. Check the labels, report any biotin use before a blood test and ask a healthcare professional for advice if you are taking medication, are pregnant, breastfeeding or allergic to fish.