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Hair & Nail

Hair & Nail

AMA Laboratories now offers a complete state-of-the-art Hair, Nail and Cosmetic Salon managed and operated by a certified/licensed cosmetologist. There are many properties hair and nails share with the skin. Consequently, there are a number of laboratory tests that are routinely employed to evaluate skin which can be applied to both hair and nails.

  • Hair density test - HAI14 Hair Volume Baseline Post App 1hr 8hr
    Hair Volume Baseline Post App 1hr 8hr
  • Hair Density Test - HAI15 baseline frizz post app combed PhGx
    Baseline frizz post app combed PhGx
  • Hair Density Test - HAI16 Baseline, Day 7, 14 Frizz PhGx
    Baseline, Day 7, 14 Frizz PhGx
  • Hair Density Test - HAI30 46-8676 N-2905 Baseline, Day 21 PhGx
    46-8676 N-2905 Baseline, Day 21 PhGx
  • NAI01 Dry Nails copy
  • NAI02 Dry Nails
  • NAI04 52-5216 Baseline, Day 7, 14, 21, 28 PhGx
  • NAI05 56-2720 O-0174 Baseline, Day 10 Right PhGx
  • Hair Density Test - SHI05 Hair Shine PhGx
  • SPL001 Baseline, Post App, Week 1, 2
  • Hair density text - HAI02 Hair Volume Baseline, Post App A
    Hair Volume Baseline, Post App A
  • HAI03 Hair Dye Retention  Blonde, Dyed, 30 Washes Without Product, 30 Washes With Product PhGx
    Hair Dye Retention Blonde, Dyed, 30 Washes Without Product, 30 Washes With Product PhGx
  • HAI09 GOAT TRESSES With Histogram PhGx
    GOAT TRESSES With Histogram PhGx
  • HAI10 GOAT TRESSES
    GOAT TRESSES

Hair Care Treatment Studies/Half Head Tests:

  • Thinning hair studies
  • Hair shaft diameters
  • Anagen/Telogen ratios
  • Hair Counting analysis
  • Gravimetric hair pull analysis shampoo and conditioner efficacy
  • Antidandruff studies

Hair Trichological Count

Hair Count Analysis – allows the determination of the hair growth patterns, before and after treatment programs. A quantity of hair uniquely identified in a specific area of the scalp is used to establish product efficacy via video microscopic procedures.

Gravimetric “Pull” Analysis

A highly developed, manual technique for removing and measuring excess fallout aggregates of hair to establish hair loss reduction patterns.

“Hair Pluck” Technique

Employs specialized forceps to “pluck” hair shafts from the scalp in order to determine the ratio of anagen (active/growth), to catagen (rest) and telogen (passive/falling) phases of the hair growth cycle.

Hair Diameter Measurements

Direct hair diameter measurements are made using optical micrometric techniques.

Regimented Combing

This test employs a standardized combing technique designed to capture hair fallout collectively, which is then separated and counted to establish the number of individual broken, intact and bulbous hairs.

Tensile Strength

The Diastron Rheometer is used to measure the force, with respect to the time, necessary to elongate and break a strand of hair as a function of hair strength.

Nails

The properties of nails can be measured by various methods. Hardness can be determined via penetrometer studies. Relative density measurements are performed photo-optically. Even flexability can be determined by an exclusive modification to the Diastron Rheometer designed at AMA Labs. Thickness measurements can be established microscopically using an optical micrometer. Additionally, there are other properties of nails, and nail care products such as porosity, brittleness, adhesion, color persistence, durability, general growth and re-application rates that may be determined under specialized AMA Laboratories testing protocols.

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This site last updated May 9, 2019

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