MAC Bronze Hero is a moderately warm-toned, medium-dark copper with a pearl finish. It is a limited edition highlighter that retails for $21.00 and contains 0.6 oz.
MAC Bronze Hero Lustre Drops ($21.00 for 0.60 fl. oz.) is a rich, deep copper with warm, reddish undertones and a fine, pearl sheen. It had sheer coverage that was buildable to semi-sheer coverage, if desired. There was subtle color and dewiness on my complexion when I used it as a cheek highlighter/bronzer. It also worked well mixed in with body cream for a subtle, warming effect on legs and decolletage. The consistency was thin, definitely watery, and blendable without lifting up base products easily. On its own, the highlighter wore well for eight hours on me.
Lustre Drops are supposed to be "water-based" liquid highlighter that has a "sheer, natural-looking" effect that is "luminous" and "shimmering." They can be mixed with base products (like primer, moisturizer, or foundation) as well as worn alone as a spot highlighter. I like this type of product best for mixing and getting a dewier finish to my base or as a base for underneath blush or highlighter. If you're someone who enjoys a subtle highlight on the skin or likes a dewy finish, the formula works nicely on its own for just that result. They come in a puff paint-like bottle, and the fine nozzle is great for controlling how much you want.