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In a comparative study the size dependency of BBB uptake and permeability was investigated for nanoparticles from 50 to 500 nm of various composition (polystryrene, protein, lipid) on a human culture BBB model in which transferrin nanocarriers with 500 nm diameter showed the most successful BBB penetration [61]
doi: 10.1007/s00262-008-0591-5 162 AwuahSGZhengYRBrunoPMHemannMTLippardSJ
For those with more sensitive skin, niacinamide is an excellent alternative to ingredients like benzoyl peroxide, due to its anti-inflammatory properties and ability to regulate oil production, board-certified dermatologist Noah Gratch, MD, explains
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