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Peer review Peer review information Nature Communications thanks Jos Pedro Friedmann Angeli and the other, anonymous, reviewer(s) for their contribution to the peer review of this work

B-12 injections bypass the digestive tract and deliver the vitamin directly into the bloodstream, ensuring quicker and more effective absorption

Post-reconstitution stability ~28 days at 28 C in BAC-water solution

Together, they combine full-face brightening with precise spot treatment for faster, more even results

The absorbance of the extracts was recorded at 663 nm for chlorophyll a, 645 nm for chlorophyll b, and 440 nm for carotenoids using a UV-1780 spectrophotometer (Shimadzu, Japan)