| Selective Sebum Absorption | | |  |  |  |  | | Selective Sebum Control | | Only absorbs oil but not moisture | |  | | | |
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| | | | | 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 | | | | | | | | | | |
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| 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 | | | | | | |  | | |  | | | | | | | | | | | | |
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| 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 | | | | | | |
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| | | | 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? | | | | | | |
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| | 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 | | | | | | | | | | |
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| | | | | Squalane on Skin | |  | | | | | | | 30sec | | 60sec | | O/W Essence Base | |  | | |  |  |  | |  | | | |  | | O/W Essence with Porous PMMA-P 4% | | | |  |  |  | | | | | | | | | Selective Sebum Absorption & Fast Absorption | | | | | | | | |
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| 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 | | | | | | | | | | | | |