All Semilac gel nail polishes are manufactured in Europe and dermatologically tested. We are well known throughout Europe for providing quality gel nail colours and products. Stays on your nails for up to 3 weeks without losing its colour and gloss. 5in1 does requires curing under a UV or LED lamp. Designed not to shrink or leak during curing. Suitable for beginners and professionals. Easy to apply with great results. As you only need one coat you save time and money too!. Perfect for broken or brittle nails. The enriched formula will enrich your nail and give you a manicure with the same strength as gel. All in 1 coat. New innovative formula! We have enriched the 5 most desirable features with a complex of 10 unique ingredients well-known for skin, hair and nails including: Biotin, arginine, soy protein and wheat leaf extract head cabbage, tea tree oil, vitamin E and glycerin, threonine and serine.