Bobbi Brown Bikini is a moderately warm-toned, light pink with a pearl finish. It is a permanent blush that retails for $36.00 and contains 0.31 oz.
Bobbi Brown Bikini Glow Stick ($36.00 for 0.31 oz.) is a light-medium pink with warm undertones and gold and pink pearl. It had sheer coverage with a dewy sheen that did not dry down. The effect is pretty on the skin if you like a really dewy glow, but the lack of dry down made it a fussy product to use as it disturbed any base products, broke foundation/powder down within hours, and on its own, it had moved around noticeably on the skin after four hours. The formula was just too emollient for practical, all-day long wear.
It's supposed to be a "creamy, lightweight highlighter" with "sheer" coverage that gives "an instant, sun-kissed glow that lasts all day." The formula was very emollient with a lot of slip and wetness; it never dried down and always felt slick on the skin. All of the shades I tried were sheer, and they were not buildable, so several shades ended up looking very similar on my skin tone (but may look more or less different on other skin tones/undertones). The emollient feel of the formula did not play well with products (primers, cream/powder/liquid foundations or blushes).
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
Like sunshine in a stick—this creamy, lightweight highlighter glides on skin to deliver an instant, sun-kissed glow that lasts all day. Available in shimmer, soft shimmer and flat finishes. The ultimate no-mirror highlighter, this sheer, emollient-rich formula goes on easy and blends seamlessly for natural, healthy-looking color. Just throw it on, blend and glow.