Hair and nails are composed of a protein called keratin, which is responsible for their strength and durability. Keratin is rich in cysteine, a sulphured amino acid that forms disulphide bonds between molecules, giving the hair and nails structure and resistance. However, ageing and excessive exposure to the sun can cause dryness, weakness, and a dull appearance in both hair and nails.

Recent studies have shown that dietary supplements can help maintain and even improve the condition of hair, skin, and nails. A dietary supplement containing shark cartilage, B vitamins, and omega-3 fatty acids has been shown to have beneficial effects on the skin, hair, and nails and reduce signs of ageing. Other studies have also shown that oral intake of minerals like zinc, B vitamins, and L-cystine can improve hair and nails.

One nutrient that has been found to have a positive effect on hair and nails is methylsulfonylmethane (MSM). MSM is a naturally occurring compound that is found in plants and milk, and it may provide a source of sulphur for the essential amino acid methionine. MSM may donate sulphur to keratin, which could help strengthen the bonds between keratin molecules in the hair and nails. When taken orally, MSM is rapidly absorbed and efficiently excreted from the body. A daily dosage of 3 grams of MSM for 4 weeks results in a significant increase in blood MSM levels, with no difference in response between men and women.

In conclusion, maintaining a healthy diet that includes a variety of nutrient-rich foods and dietary supplements can help improve the condition of your hair, skin, and nails. MSM is a nutrient that has been shown to have a positive effect on the strength and appearance of hair and nails, and it may be worth considering as a supplement to support your overall hair and nail health.