Author name: Marcus H. Delaney, MSc

Marcus Delaney is a formulation scientist with a Master’s degree in Cosmetic Science and Industrial Chemistry. His professional background spans product development, ingredient sourcing, and quality control for clean beauty and derma-cosmetic brands. At Active Ingredient Hub, Marcus focuses on ingredient functionality, explaining how actives behave under different pH levels, concentrations, and delivery systems. His articles often bridge the gap between marketing claims and chemical reality, helping readers distinguish hype from science. When he’s not testing formulations, Marcus enjoys cold-brew coffee experiments, urban photography, and restoring vintage lab glassware. He brings a calm, practical voice to cosmetic chemistry—grounded in real-world lab constraints.

Cosmetics

Why the Best Bakuchiol Serum Must Be UV-Stable and Non-Photo-Toxic

Marcus H. Delaney, MSc

Whenever a new “holy grail” active takes the beauty industry by storm, my instinct in the lab isn’t to look at the glossy marketing campaign, it’s to look at the raw material safety data sheet and run stability testing. Bakuchiol is easily one of the most exciting molecules we’ve seen in clean beauty over the […]

Cosmetics

BEST SUNBLOCK FOR FACE: MINERAL VS. CHEMICAL SUNSCREENS EXPLAINED

Marcus H. Delaney, MSc

In the lab, we don’t just look at a bottle and see “sunscreen”; we see a complex matrix of solvents, emulsifiers, and, most importantly, active filters that must remain stable under high UV stress. When you’re searching for the best sunblock for face, you’re essentially choosing between two very different chemical philosophies. Mineral sunscreens, typically