MAC Golden Bronze is a very warm-toned, light-medium copper with a luminous finish. It is a limited edition highlighter that retails for $29.00 and contains 0.42 oz.
MAC Golden Bronze Iridescent Powder/Loose ($29.00 for 0.42 oz.) is a soft, peachy brown with warm undertones and a fine, golden pearl that yielded a moderate glow. It was glowing without emphasizing my skin's natural texture, and it did had color to my skin tone--it looked a bit like a highlighting bronzer on my skin tone and would be more my-skin-but-better on medium-tan and deeper complexions.
The consistency was silky, smooth, and easy to blend, and it had enough weight to the mix that it didn't fly everywhere when I initially picked it up, though you'll want to tap off excess into the pot or cap if you tend to be heavy handed. It had good pigmentation, but a lighter hand or picking up less product made it more buildable if one preferred. It wore well for eight hours on me before fading slightly.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
M·A·C Iridescent Powder/Loose is a finely milled mixture of mica and pigments that gives skin a subtle glaze of colour with intense pearl. It can be used on its own or mixed into other products like foundations or moisturizers to enhance their iridescent qualities. Designed to apply easily and uniformly, it blends beautifully and can be applied on bare skin or over foundation. Because it's so concentrated, it should be used sparingly at first.