Firstly, good for your hair.Silk will not absorb natural moisture from your face and hair or facial beauty creams while you sleep, unlike cotton, which is an absorbent fiber and draws water.Sleeping on silk can help prevent thinning of the hair. Cotton causes more friction disrupting hair follicles as we move in our sleep leading to hair breakage and split ends. Because of its unique weave, silk pillowcases will prevent hair from tangling as we carry in our sleep. They will also help keep our hairstyle. Secondly, anti-aging and good for your health.Have you ever woken up with creases on your face! That's a dead giveaway as to what side of your face you were sleeping on.Chinese have known for centuries the health benefits of sleeping on silk pillowcases. As silk is the nearest thing to human skin known to man, it contains a natural protein and 18 essential amino acids. Studies show amino acids can counter the effects of aging, especially in the facial skin, and can help calm the nervous system. Silk also contains natural cellular albumen, which helps speed up the metabolism of skin cells, thus helping to reduce signs of aging.Silk is naturally hypoallergenic, making it a must for allergy sufferers, especially eczema. Helping sensitive dry or itchy skin – that's why babies and children would benefit from silk by avoiding exposure to allergens. Silk is also inhospitable to dust mites and naturally fire retardant. Thirdly, anti-wrinkle.When you get older, the fine lines take longer to disappear when you wake up, sometimes not fading until lunchtime. Nighttime is when the skin repairs itself. Using a SLIPINTOSOFT silk pillowcase can give your skin the chance to breathe naturally.SLIPINTOSOFT 100% natural silk pillowcase aids with skin repair because it maintains the skin's moisture levels. This product is different from usual as it is made from organic silk, which contains amino acids, the building blocks of your skin. When sleeping on this pillowcase, your night cream is fully absorbed by the skin and won't rub off like it usually does, therefore allowing the cream to work to maximum effect.SLIPINTOSOFT stops your face from drying out during the night (very common during winter months when central heating is on.) because moisture levels are being maintained throughout the night, deeper lines and wrinkles are not forming.Fourthly,How to Choose a good silk pillowcase? Silk Fabric: 19 Momme; 22 Momme; 25 Momme.Momme (mm) is a unit traditionally used to measure the quality of silk fabrics. One momme = 4.340 grams per square meter; 8 mommes is approximately 1 ounce per square yard or 35 grams per square meter.For a pillowcase, the higher the weight in momme, the better the silk pillowcase is. Pillowcase between 19-25 momme is considered ideal silk with momme weight. Lower than 19 are not suitable for the production of a quality silk pillowcase.We have different kinds of silk pillowcases now, and you can enjoy the luxurious and cozy comforts of our items.Buy our pillowcase now, and you will be a lifetime silk fan!