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    GlossaryRete Ridges

    downward projections of the epidermis into the dermis

    Rete ridges, also known as epidermal ridges or rete pegs, are the downward projections of the epidermis into the dermis. They interlock with the upward projections of the dermis, called dermal papillae, to strengthen the connection between these two skin layers, enhancing the skin's structural integrity and resistance to shear forces. This interlocking structure is crucial for maintaining skin stability and facilitating nutrient exchange between the layers.

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      community microneedle, any long term users damage?

      in Microneedling  35 upvotes 1 year ago
      Microneedling is effective for hair growth, especially when combined with finasteride and minoxidil, but concerns exist about potential long-term skin damage. Users report increased collagen and elastin deposition, but the long-term effects on the scalp remain uncertain.

      community Injured temple with derma rolling

      in Microneedling  2 upvotes 1 year ago
      OP injured their temple using derma rolling and tretinoin, causing peeling and potential hair follicle damage. Users suggest the injury might be permanent, possibly resulting in scar tissue where hair won't grow.

      community Shiseido RCH-01

       5 upvotes 7 years ago
      Shiseido RCH-01 and Replicel's upcoming trial data release. Users discuss expected release timelines and clarify quarter dates.

      community Tiny tiny hairs outlining juvenile hairline

      in Is this regrowth?  17 upvotes 1 year ago
      The conversation is about hair regrowth using high-dose dutasteride, oral minoxidil, and microneedling. Users discuss seeing tiny hairs and hope they will become terminal, with advice to use derma rolling weekly for better results.