DunzoomUnderglaze for Ceramics Kit Underglaze Paint Colors 12 Ceramic Clay Assorted Colors in 2 Ounce with 6 Pcs Paint Brushes and a Paint Tray Concentrated Opaque Liquid (Underglaze)

For the money, definitely worth it. Colors are clear and when fired to cone 6, stay true. I bought them to experiment and it turns out, I really like them!

Looks good so far next step to fire it then put clear glaze on it

I'm a ceramic artist and work with glazes constantly. When I saw these come up on Vine, I ordered them because I felt like I could give a solid review and I knew I would find a use for them.First, they are UNDERGLAZES, which means they should not be shiny. I was surprised and pleased to see that was actually true. While the colors are not super intense, these would work for adding detail color to pieces. The assortment of colors is pretty good, I do wish they had stuck with intense primary and secondary colors. For example a bright green instead of a dark green and a bright purple instead of a light purple. The dark purple (Hollyhock) is more of a dark blue/black, the purple is more lavender. The lighter brown and darker brown are a nice contrast and black and white are acceptable. The Hollyhock is the least useful shade since its so close to black and would barely contrast. I'm nitpicking, but given the quantity and price, I think its acceptable.Sample:The photo I uploaded is all the underglazes painted with the standard three layers on a white earthenware tile and fired to Cone 06. Through the center of each square is a thin stripe of clearcoat glaze to show what it would look like under clear. Across the top and bottom of each color are stripes of other colors to show what they would look like in comparison if they were layered. I purposefully made the lines both thick and thin so you could see both. The dots are the primary color underglazes (red, yellow, blue) mixed to secondary colors. Glazes, because they are chemical formulas generally cannot be mixed like you would regular paints unless they are designed for it. In the light blue square, you can see that the yellow and blue dots can somewhat achieve green. The red and blue mix dotted on the line between doesn't quite get purple. The yellow and red mix on their border line however does seem to get somewhat orange. With more experiementation, I think variations in color or gradations at least could be achieved. White does make paler colors and black does darken the underglazes. I was happy to see that the underglazes kept solid borders and did not contaminate each other with "shadows" from chemical gassing.The listing claims these can fire to Cone 5, I hope to fry them on a Cone 6 load and see if I get anything. I don't usually fire at Cone 5 but if they don't burn out, I may try them with some of my stoneware and test some of my favorite glazes with them to see what I get. Even if they can't fire to Cone 6, firing at 04-06 will work fine with my earthenware and provide a nice range of colors to work with.Edit:Since these did not come with material safety sheets, I lead tested the glaze before firing with swab tests. They came up negative.Also, the included brushes are a great quality and I really like the range of width. I do wish they had included a fan brush since I've found that is the best brush for even application. For details like I intend to use these for, these brushes are nice.Good buy!