| | | Selective Sebum Absorption | | |  |  |  |  | | | Selective Sebum
Control | | | Only absorbs oil but
not moisture | |  | | | |
| | | |
| | | | | | | | What is ‘Selective Sebum Control’? | | | | | | | | | | No matter how old you are,
you might find yourself with
the oily, pore-clogged skin
that leads to acne. Oily skin
is a result of excess sebum
production from sebaceous
glands on the face, neck,
chest and back. Excess
sebum production is in part
because of hormones and
hereditary factors and
commonly persists beyond
adolescence. Fortunately,
there are a variety of
effective ways to control
sebum and clear oily skin,
regardless of the forces that
cause it. | | | http://www.ehow.com/how_
7341924_control-
sebum.html | |  | | | Need to absorb not moisture
but sebum on skin
Selectively | | | | | | | | | | | |
| | | |
| | | SUNJIN offers various grades of POROUS PMMA BEADS | | | | | | | | | | | | INCI:
Methyl Methacrylate Cross
Polymer | | | | | Grade | Avg. Particle
size(㎛) | Oil Absorption
(cc/g) | | SUNPMMA-P20 | 2 | 1.7~2.1 | | SUNPMMA-COCO130 | 8 | 1.2~1.4 | | SUNPMMA-COCO170 | 8 | 1.6~1.8 | | SUNPMMA-P | 8 | 1.7~2.1 | | SUNPMMA-PH | 8 | 2.1~2.4 | | | | | | | | | | | | |  | | | | | | | SUNPMMA PH | |  | | 2.4 | | | | | | SUNPMMA P | |  | | 1.89 | | | | | | COCO170 | |  | | 1.72 | | | | | | COCO130 | |  | | 1.34 | | | | | | SUNPMMA-S | |  | | 0.45 | | | | | | |  | | |  | | | | | | | | | | | | | | |
| | | |
| | | Characteristics of Porous PMMA: 1)Selective Absorption | | | | | | | | | | | | Porous PMMA,
especially good for | | - Sebum control skin
care
- Men’s skin care | | For its excellent feel
and spread without
skin dryness | | | | | | Porous PMMA | | | |  | | | | Porous PMMA absorbs oils fast but not water | | | | Porous Silica | | | |  | | | Porous Silica absorbs oils & water fast
-> Skin feels dry | | | | | | | | | | | Selective Sebum
Absorption for
Skin Care | | | | | | | | | *D5:Cyclomethicone
**LP: Liquid Paraffin | | | | | | | |
| | | |
| | | | | | | | Question |  | | | Aston Chemicals Ltd
Date of lssue: January 2015
Author: Loma Radford | | | | | SUNPMMA-P is a Methyl Methacrylate Crosspolymer
microsphere that can selectively absorb sebum on the
skin.
However, does this mean that SUNPMMA-P will absorb
the oil phase of a formulation?
If it absorbs oil in the formulation then
will that prevent it from absorbing sebum
on the skin?
How should the SUNPMMA-P be added to a
formulation to prevent this from happening? | | | | | | | |
| | | |
| | | | Test Result | |  | | | | | | | Conclusion | PMMA in an O/W
emulsion can absorb
squalane (the most
similar to sebum that we
could achieve in this
investigation) on the skin.
Squalane was spread on
the skin and then photos
over time showed that a
lotion containing
PMMA reduced the
shine from the
squalane more quickly
and more effectively than
the control lotion,
indicating absorption of
the squalane by PMMA. | | | Aston Chemicals Ltd
Date of lssue: January 2015
Author: Loma Radford | | | | | | | | | | | | |
| | | |
| | | | | | | | | Squalane
on Skin | |  | | | | | | | | | 30sec | | 60sec | | O/W Essence
Base | | |  | | |  |  |  | |  | | | | |  | | | O/W Essence with Porous
PMMA-P 4% | | | |  |  |  | | | | | | | | | | Selective Sebum Absorption
& Fast Absorption | | | | | | | | | |
| | | |
| | | Characteristics of Porous PMMA: 2)Media Dispersibility | | | | | | | | | | Best recommend for | | (1)Spray | | (2)Shaking toner | | | | | | | Water/EtOH dispersible porous PMMA | | | | |  | | | Powder 10%, EtOH 10%, Water 80%
3 Month Later, upside down test | |  | | |  | | | 1. Urethane Bead A
2. Urethane Bead B
3. COCO 130(porous)
4. Nylon 12 Powder
5. SUSNIL 130NP
6. SUNPU170
7. SUNPMMA-S
8. SUNPMMA-PH(porous)
9. PE Bead
10. SUNSIL 130H
11. SUNPMMA-P(porous)
12. SUNSIL 130 | | No Good
No Good
Good
No Good
O.K.
No Good
No Good
Good
No Good
No Good
Good
No Good | | | | Porous PMMA Beads have
shown excellent
re-dispersibility | | | | | | | | | | | | | | |
