The SciencE

Microneedling & “Inkless Tattoo” for Scars, Stretch Marks, and Hair Loss

Microneedling and “inkless tattoo” treatments involve making controlled micro-injuries in the skin to trigger the body’s natural healing response. These treatments can be performed with different devices, including professional tattoo machines, tattoo pens, and other microneedling-related devices such as Derma rollers and Dermapen. By creating tiny punctures, they stimulate collagen and elastin production, which helps the skin look smoother and firmer.

 (Sources: American Academy of Dermatology [AAD]; Cleveland Clinic; Journal of Cutaneous and Aesthetic Surgery)

Dermatology studies show these procedures can improve the appearance of scars and stretch marks and even promote hair regrowth in certain types of alopecia. Treatments may also include the application of serums to enhance results. Over time, the new collagen remodels the skin for improved texture and tone.
(Sources: Dermatologic Surgery, 2018; Journal of Cosmetic Dermatology, 2020; AAD)

Healing & Recovery

After a session, the skin usually looks pink to red and may feel tight or mildly swollen for 2–5 days. Most people can wear makeup the next day. Multiple treatments (typically 3–6 sessions spaced several weeks apart) are usually needed for best results. Improvements continue for several months as collagen builds.
(Sources: Cleveland Clinic; Healthline 2023; AAD)

Benefits

• Reduces scars and stretch marks
  Breaks down old scar tissue and stimulates new collagen. Clinical studies      report that 100% of stretch marks improved after ~2 sessions, and over 65% of patients saw more than 75% improvement in scars after 2–3 sessions.
  (Sources: Aust et al., Dermatologic Surgery 2010; Fabbrocini et al., Journal of Cosmetic Dermatology 2014)
• Improves skin texture and tone
  Helps smooth wrinkles, refine pores, and even pigmentation without the      pigment risks of laser treatments.
  (Sources: AAD; Cleveland Clinic)
• Supports hair regrowth
  Microneedling devices on the scalp can improve blood flow and enhance      topical treatments like minoxidil. In one study, patients using microneedling with minoxidil grew an average of 91 new hairs in 12 weeks compared to 22 hairs with minoxidil alone.
  (Source: Dhurat et al., International Journal of Trichology 2013)
• High client satisfaction
  Systematic reviews report consistent improvements in scars, skin texture, and patient confidence.
  (Source: Zeinali et al., Aesthetic Plastic Surgery 2021 – systematic review)

Risks & Limitations

• Multiple sessions & cost
  Typically 3–6 sessions are needed. In California, costs range from $200–$700 per session, or $1,000–$3,000+ for a full treatment plan.
  (Sources: American Society of Plastic Surgeons; RealSelf Cost Guide 2024)
• Temporary side effects
  Redness, swelling, or pinpoint bleeding are common right after treatment.      These effects usually resolve within a few days.
  (Sources: AAD; Cleveland Clinic)
• Not for everyone
  Avoid if you have active acne, skin infections, sunburn, or a history of keloids. It’s also not recommended for people on blood-thinners or undergoing certain medical treatments. Pregnant patients should consult their doctor first.
  (Sources: AAD; Dermatology Times)

What to Expect

• During treatment: Skin is cleansed and numbing cream applied. The provider uses a microneedling-related device—often a tattoo pen or machine—over the      treatment area. Sessions last 30–60 minutes.
  (Sources: AAD; Cleveland Clinic)
• After treatment: Mild redness, pinpoint bleeding, or swelling is normal. Most      people return to work the same day, with makeup use allowed after 24 hours.
  (Source: Healthline 2023)
• Aftercare: Avoid sun exposure, harsh chemicals, and heavy exercise for a few days.  Sunscreen is essential during healing.
  (Sources: Cleveland Clinic; AAD)

Longevity of Results

• Skin:  Improvements can last 6–12 months, but maintenance sessions (usually once per year) help sustain results.
  (Sources: AAD; Journal of Cosmetic Dermatology 2020)
• Hair: For alopecia, new growth may require ongoing sessions or combined      treatments for maintenance.
  (Sources: Dhurat et al., 2013; International Journal of Trichology)

Summary

Microneedling and inkless tattooing with tattoo machines, tattoo pens, and related devices are effective, minimally invasive options for reducing scars, stretch marks, and promoting hair regrowth. They offer high satisfaction rates but require multiple sessions and come with temporary downtime. In California, patients should budget $1,000–$3,000 for a complete treatment plan.

These treatments are safe for many skin types and show consistent benefits in clinical studies, making them a strong option for those seeking non-surgical skin and hair restoration. (Sources: AAD; Cleveland Clinic; Aust et al., 2010; Fabbrocini et al., 2014; Dhurat et al., 2013; Zeinali et al., 2021)