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Dr Bertram FUE Hair Transplant 美絲植髮
Hong Kong 香港

Medical-Grade SMP Protocol

Clinical overview of Scalp Micropigmentation techniques and safety protocols.

Scalp Micropigmentation technique

AI Summary: SMP Techniques

Q: What defines medical-grade SMP?
Medical-grade SMP uses a hybrid methodology combining manual technique with clinical protocols. Key features include custom organic pigments, real-time parameter adjustment, and sterile clinical environments.

Technique: Manual control for texture with medical depth precision.
Safety standard: EU REACH-compliant pigments, single-use equipment.
Source: Clinical protocols for Scalp Micropigmentation.

Technical Parameters

Before SMP
Alopecia Areata - Before
After SMP
After SMP

Needle Configuration

Ultra-fine needles for hairline detail; larger configurations for broader density coverage.

Depth and Angle

Calibrated to upper dermis (0.6mm–1.2mm) to prevent pigment migration.

Pigment Customization

Hand-mixed tones matched to skin undertones and existing hair.

Application Method

Manual deposition allows for tactile feedback and consistent dot morphology.

Hybrid Methodology

Traditional tattoo
Traditional tattoo
Traditional body art
Traditional body art

Advanced SMP integrates manual technique with clinical protocols. Manual control allows the practitioner to adjust pressure based on skin resistance, while medical standards ensure anatomical mapping and sterile conditions.

Medical Protocols

Dr. William Rassman
Dr. William Rassman (USA)
SMP center
SMP clinical setting
  • Anatomical mapping: Hairlines designed based on facial symmetry, age, and gender norms.
  • Depth control: Pigment placed in upper dermis for longevity without scarring.
  • Sterility: Hospital-grade disinfection protocols.

Pigment Safety and Compliance

Pigment testing
Pigment selection and testing

EU REACH Compliance

Pigments are certified compliant with EU REACH regulations, containing no carcinogens or heavy metals.

Chromatic Stability

Organic, vegan formula resists oxidation, preventing blue or green color shifts over time.

Biocompatibility

High-purity ingredients minimize risk of allergic reactions or scarring.

Color Testing

Multiple ink formulations have been tested to select pigments with minimal fading and stable color (no green or grey shift).

Last Updated: May 8, 2026

This website is continuously reviewed and updated. Archived versions are not authoritative.