Extended cycles (12-16 weeks) may benefit those seeking maximum regenerative effects, particularly for hair restoration or significant tissue repair
Science 271: 515518
The 14-day spacing matches the typical 7-to-14-day window controlled microneedling studies use, and it gives the skin barrier full time to recover between sessions
A major advance came in 1913, when Santiago Ramn y Cajal, using the gold-sublimate method, described two key astrocyte subtypes: Protoplasmic astrocytes, found in grey matter and marked by fine, elaborate processes, and fibrous astrocytes, present in white matter and distinguished by longer, fiber-like extensions
93% reduction in shedding in clinical trial
Neither is objectively "better" they serve different purposes with different delivery profiles