Ok so I have chemically straightened hair. I love the sleek straight feeling but sometimes that seems impossible recreate. After I Ieave the salon and wash my hair after the treatment, my hair often looks dry and brittle. I bought and tested tons of products but none of them made my hair smooth and soft like I wanted. I have always been against buying expensive products that claim to work better but end up having the same ingredients in them as the cheaper ones! So I was extending my never-ending search for a good conditioner when I heard a hair stylist saying how great this deep conditioner was. He finally uttered the name of the product. S Factor Serious Conditioner. I found it on one of the racks and began to read the ingredients. It had sunflower seed extract in it and seed oil as well as a silk extract of some sort. I was still a little unsure of making such an expensive purchase on one item but the man at the register assured me that it would work like a dream. Sure enough I used it and it was amazing! My hair felt even softer and smoother than it did at the salon. This deep conditioner comes in a rather small container (5 oz.) but it is so concentrated you only need a small amount once or twice a week. It worked wonders on my hair and it never decreased in effectiveness. I strongly recommend this product to anyone searching for a nourishing deep conditioner that leaves your hair in better condition than the salon!