Question about TH product

Question

ใช้สำหรับใบหน้า รักษา[url=http://www.myskinrecipes.com/shop/60-%E0%B8%A5%E0%B8%B0%E0%B8%A5%E0%B8%B2%E0%B8%A2%E0%B8%AA%E0%B8%B4%E0%B8%A7%E0%B8%AD%E0%B8%B8%E0%B8%94%E0%B8%95%E0%B8%B1%E0%B8%99:3qhrzm57]สิวอุดตัน[/url:3qhrzm57] และลดความมันเป็นหลัก สำหรับคนผิวมันครับ

ต้องการเนื้อเซรั่มแบบซึมไว จะใช้ทาก่อน [url=http://www.myskinrecipes.com/recipes/%E0%B8%AA%E0%B8%B9%E0%B8%95%E0%B8%A3/2465-skin-barrier-cream/:3qhrzm57]Skin Barrier Cream[/url:3qhrzm57] ครับ
%
1.น้ำ 50
2 [url=https://www.myskinrecipes.com/shop/%E0%B8%AA%E0%B9%88%E0%B8%A7%E0%B8%99%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%81%E0%B8%AD%E0%B8%9A%E0%B9%80%E0%B8%84%E0%B8%A3%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B8%87%E0%B8%AA%E0%B8%B3%E0%B8%AD%E0%B8%B2%E0%B8%87%E0%B8%84%E0%B9%8C/143-glycerin-%E0%B8%81%E0%B8%A5%E0%B8%B5%E0%B9%80%E0%B8%8B%E0%B8%AD%E0%B8%A3%E0%B8%B5%E0%B8%99.html:3qhrzm57]Glycerin[/url:3qhrzm57] 99.5% 5
3.[url=http://www.myskinrecipes.com/shop/%E0%B8%A3%E0%B8%B1%E0%B8%81%E0%B8%A9%E0%B8%B2%E0%B8%AA%E0%B8%B4%E0%B8%A7/2014-complex-salicylic-acid-powder-water-soluble.html:3qhrzm57]Complex Salicylic Acid[/url:3qhrzm57] 5
4.[url=http://www.myskinrecipes.com/shop/%E0%B8%95%E0%B9%88%E0%B8%AD%E0%B8%95%E0%B9%89%E0%B8%B2%E0%B8%99%E0%B8%A3%E0%B8%B4%E0%B9%89%E0%B8%A7%E0%B8%A3%E0%B8%AD%E0%B8%A2/74-vitamin-b3-niacinamide-%E0%B8%A7%E0%B8%B4%E0%B8%95%E0%B8%B2%E0%B8%A1%E0%B8%B4%E0%B8%99%E0%B8%9A%E0%B8%B53.html:3qhrzm57]Safe-B3[/url:3qhrzm57]™(Switzerland) 5
5.[url=http://www.myskinrecipes.com/shop/whitening-%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B9%83%E0%B8%AB%E0%B9%89%E0%B8%9C%E0%B8%B4%E0%B8%A7%E0%B8%82%E0%B8%B2%E0%B8%A7/116-glucosamine-n-acetyl-%E0%B8%81%E0%B8%A5%E0%B8%B9%E0%B9%82%E0%B8%84%E0%B8%8B%E0%B8%B2%E0%B8%A1%E0%B8%B5%E0%B8%99.html:3qhrzm57]GlucoBright[/url:3qhrzm57] 4
6.[url=http://www.myskinrecipes.com/shop/%E0%B8%A3%E0%B8%B1%E0%B8%81%E0%B8%A9%E0%B8%B2%E0%B8%AA%E0%B8%B4%E0%B8%A7/212-methylsulfonylmethane-msm-%E0%B9%80%E0%B8%A1%E0%B8%97%E0%B8%B4%E0%B8%A5%E0%B8%8B%E0%B8%B1%E0%B8%A5%E0%B9%82%E0%B8%9F%E0%B8%99%E0%B8%B4%E0%B8%A5%E0%B8%A1%E0%B8%B5%E0%B9%80%E0%B8%97%E0%B8%99.html:3qhrzm57]Pure MSM[/url:3qhrzm57] 3
7.[url=http://www.myskinrecipes.com/shop/%E0%B8%A1%E0%B8%AD%E0%B8%A2%E0%B8%8B%E0%B9%8C%E0%B9%80%E0%B8%88%E0%B8%AD%E0%B8%A3%E0%B9%8C/111-panthenol-pro-vitamin-b5-%E0%B9%82%E0%B8%9B%E0%B8%A3-%E0%B8%A7%E0%B8%B4%E0%B8%95%E0%B8%B2%E0%B8%A1%E0%B8%B4%E0%B8%99%E0%B8%9A%E0%B8%B55.html:3qhrzm57]Pro Vitamin B5[/url:3qhrzm57] 2
8.[url=http://www.myskinrecipes.com/shop/%E0%B8%A3%E0%B8%B1%E0%B8%81%E0%B8%A9%E0%B8%B2%E0%B8%AA%E0%B8%B4%E0%B8%A7/252-zinc-pca-%E0%B8%8B%E0%B8%B4%E0%B8%87%E0%B8%84%E0%B9%8C-%E0%B8%9E%E0%B8%B5%E0%B8%8B%E0%B8%B5%E0%B9%80%E0%B8%AD.html:3qhrzm57]Zinc PCA[/url:3qhrzm57] 1
9.[url=http://www.myskinrecipes.com/shop/%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B8%AA%E0%B8%81%E0%B8%B1%E0%B8%94%E0%B8%9E%E0%B8%B7%E0%B8%8A%E0%B8%AA%E0%B8%A1%E0%B8%B8%E0%B8%99%E0%B9%84%E0%B8%9E%E0%B8%A3/69-licorice-extract-licochalcone-a-%E0%B8%8A%E0%B8%B0%E0%B9%80%E0%B8%AD%E0%B8%A1%E0%B9%80%E0%B8%97%E0%B8%A8-%E0%B8%AA%E0%B8%81%E0%B8%B1%E0%B8%94.html:3qhrzm57]Licochalcone A[/url:3qhrzm57] 1
10.[url=http://www.myskinrecipes.com/shop/penetration-enhancer-%E0%B8%99%E0%B8%B3%E0%B8%9E%E0%B8%B2%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B8%AA%E0%B8%B9%E0%B9%88%E0%B8%9C%E0%B8%B4%E0%B8%A7/1585-laurocapram-azone.html:3qhrzm57]Laurocapram[/url:3qhrzm57] 2
11.[url=http://www.myskinrecipes.com/shop/%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B8%81%E0%B8%B1%E0%B8%99%E0%B9%80%E0%B8%AA%E0%B8%B5%E0%B8%A2/1001-ethylhexylglycerin-caprylyl-glycol.html:3qhrzm57]Mild Preserved Eco[/url:3qhrzm57] 1
12.[url=http://www.myskinrecipes.com/shop/%E0%B9%80%E0%B8%9A%E0%B8%AA%E0%B9%80%E0%B8%84%E0%B8%A3%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B8%87%E0%B8%AA%E0%B8%B3%E0%B8%AD%E0%B8%B2%E0%B8%87/498-serum-base-%E0%B9%80%E0%B8%9A%E0%B8%AA%E0%B9%80%E0%B8%8B%E0%B8%A3%E0%B8%B1%E0%B9%88%E0%B8%A1.html:3qhrzm57]Silky Serum Base[/url:3qhrzm57] 20
13.[url=http://www.myskinrecipes.com/shop/%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B8%81%E0%B8%B1%E0%B8%99%E0%B9%80%E0%B8%AA%E0%B8%B5%E0%B8%A2/6038-magnesium-sulfate.html:3qhrzm57]Magnesium Sulfate[/url:3qhrzm57] 1

การผสมแบบคนมือ

ผสม 1+2+3+4+5+6+7+8 คนจนละลายหมด
ผสม 9+10+11
แบ่งการเติมส่วนผสมที่ละลายในน้ำออกมาเป็นหลายๆส่วน ให้เติมทีละน้อยลงใน 12 และคนให้เข้ากันก่อน จึงเติมส่วนที่เหลือเพิ่ม[ทีละน้อย] ทำแบบนี้ไปเรื่อยๆ จนหมด
เติม 13 เพื่อช่วยเพิ่มความคงตัวของสูตร

ส่วนผสมต้องปรับปรุงอะไรไหมครับ
ผสมแบบคนมือได้ไหมครับ ตอนผสมกับเบสเซรั่ม

ขอบคุณครับ

MySkinRecipes Expert · Accepted Answer

Formula Review: Acne and Oil Control Serum

The serum formulation you've created is well-designed for addressing clogged pores and reducing oiliness on oily skin. The combination of ingredients is suitable for these concerns, and the percentages used are generally within recommended ranges for efficacy.

Here's a breakdown of the formula and mixing method:

Formula Ingredients and Percentages

Water (50%): The base of the serum.
Glycerin (5%): Acts as a humectant to help retain moisture.
Complex Salicylic Acid (5%): Provides exfoliation and helps clear clogged pores. At 5% of this ingredient (which contains 40% Salicylic Acid), you are using the maximum allowed concentration of Salicylic Acid (2%).
Safe-B3™ (5%): Niacinamide helps reduce oiliness, minimize pores, and improve skin barrier function.
GlucoBright™ (4%): Acetyl Glucosamine works well with Niacinamide for improving skin tone and can offer gentle exfoliation.
Pure MSM™ (3%): Contributes to oil control.
Pro Vitamin B5 (2%): Provides hydration and helps soothe the skin.
Zinc PCA (1%): Excellent for reducing sebum production and has anti-acne properties.
Licochalcone A (1%): A licorice extract that helps reduce inflammation and redness associated with acne.
Laurocapram (2%): As a water-soluble penetration enhancer, it helps the water-soluble active ingredients absorb better into the skin.
Mild Preserved Eco™ (1%): Acts as the preservative for the formula.
Silky Serum Base (20%): Provides the desired light, fast-absorbing serum texture.
Magnesium Sulfate (1%): Included to help stabilize the Silky Serum Base.

Mixing Method

The proposed mixing method is appropriate for manual mixing, especially the crucial step of gradually adding the water phase (containing the dissolved active ingredients) to the Silky Serum Base. This technique is necessary to properly form the serum texture with this type of base.

Combine Water-Soluble Actives: Mixing Water, Glycerin, Complex Salicylic Acid, Safe-B3™, GlucoBright™, Pure MSM™, Pro Vitamin B5, and Zinc PCA together first ensures these ingredients are fully dissolved in the water phase.
Combine Other Water-Soluble/Dispersible Ingredients: Mixing Licochalcone A, Laurocapram, and Mild Preserved Eco separately before combining with the main water phase or adding to the base is also acceptable.
Gradual Addition to Base: The method of adding the water-soluble mixture gradually, in small portions, to the Silky Serum Base while stirring is correct and essential for achieving the desired serum consistency.
Add Stabilizer: Adding Magnesium Sulfate at the end is recommended for stabilizing the Silky Serum Base.

Potential Considerations

pH Level: Ensure the final pH of the serum is within the effective range for the active ingredients, particularly Complex Salicylic Acid (pH 3-7), Safe-B3™ (pH 4-7 is best), Zinc PCA (pH 4-6 is best), and Licochalcone A (pH 3.5-6.5). Aiming for a pH between 4.0 and 6.0 would be ideal to ensure the efficacy and stability of most ingredients.
Dissolution: While Complex Salicylic Acid (Water-Soluble) is designed to dissolve in water, ensure it is fully dissolved in step 1 to avoid any gritty texture.
Manual Mixing Time: Manually mixing the water phase into the Silky Serum Base in step 3 will require thorough stirring after each addition to ensure homogeneity before adding the next portion. This might take some time compared to using a high-shear mixer, but it is achievable.

Overall, the formula looks promising for oily, acne-prone skin, and the mixing method is suitable for manual preparation.