INTRODUCTION TO COSMETIC ENGINEERING
CƠ SỞ KỸ THUẬT MỸ PHẨM
Chapter 2: Dermatology and target organs for cosmetics (2)
Chương 2: Da liễu đối tượng mục tiêu của mỹ phẩm (2)
2024
Assoc.Prof. Nhan Le
University of Technology-VNU-HCM
1
General
1. Skin Da
2. Hair Tóc
3. Lips Môi
4. Teeth Răng
5. Nails - Móng
Biological structural characteristics
Demand for cosmetic products
2
Môi- Lip
3
Characteristics- Đặc điểm
CONTAIN MORE THAN A MILLION NERVE ENDINGS
NO SWEAT OR OIL GLANDS
THINNER THAN THE REST OF OUR SKIN
LIPS GET THINNER WITH AGE
Môi- Lip
4
Characteristics- Đặc điểm
Normal skin Lip skin
Oil gland Yes No
stratum corneum (Lớp
sừng)Thick (Dày) Thin (Rất mỏng)
Natural moisturizing
ingredients (Thành
phần giữ ẩm tự nhiên)
Much (Nhiều)
0.76-1.27mol/mg Little (Ít)
0.12mol/mg
Evaporating rate (Tốc
độ bay hơi nước)Slow (Chậm)
11-19g/mm2 hr Fast (Nhanh)
78g/mm2hr
Water content (Hàm
lượng nước)Much (Nhiều)
30-39 s
Little (Ít)
16-25 s
Dried and peeled off (Khô bong)
Môi- Lip
5
To keep the lips hydrated and well cared for.
To avoid chapped or flaky lips even when it’s chilly outside!
To make lips look suppler, healthier and more youthful.
To improve the delicate lip skin.
To form a protective layer to seal in moisture.