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Preservatives in Anhydrous Formulations

Do formulations containing only wax, oil, or silicone, without any water, require preservatives?

Cosmetics Anhydrous Formulation Balm Microbial Contamination Preservation Water Content
Posted by deelkung
2015-10-29
Mixing Oil, Silicone, and Water with Pro Polymer Silk

How to mix a formulation containing oil, silicone, and water using `Pro Polymer™ Silk` as the gelling agent? What are the mixing steps?

Cosmetics Gel Gelling Agent Mixing Procedure Oil-based Formulation Silicone-based Formulation
Posted by miraclegus
2015-10-29
Comparison of Perfect-C (Ascorbyl Tetraisopalmitate) and GO-VC (Glyceryl Octyl Ascorbate)

Could you please provide a comparison of the efficacy between Perfect-C (Ascorbyl Tetraisopalmitate) and GO-VC (Glyceryl Octyl Ascorbate)?

Cosmetics Active Ingredient Effectiveness Ingredient Comparison Skin Brightening Stability
Posted by eakanui
2015-10-29
Penetration Enhancers (Ethoxydiglycol vs PE-1 Aqua) in Serum Formulation

Based on the following serum formula, what percentage of Ethoxydiglycol should be used? * Vitamin B3 5% * NAG 4% * Pro Polymer 1% * Phenoxyethanol 1% * Water (remaining)

Cosmetics Formulation Adjustment Ingredient Suggestion Penetration Enhancer Serum Texture
Posted by last_psychedelic
2015-10-28
Melasma Cream Formulation Review and Adjustment

I have developed a melasma cream formulation targeting thick and widespread pigmentation. I would like to request a review of the formula regarding ingredient compatibility,...

Cosmetics Compatibility Cosmetic Formulation Cream Formulation Adjustment Melasma Treatment
Posted by marissadajai
2015-10-28
Adding Natural Preservatives to Organic Cream

What are the suitable natural preservatives for an organic cream formulation, and what are their characteristics and usage guidelines?

Cosmetics Challenge Test Cream Ingredient Selection Natural Formulation Preservation
Posted by kanpitcha2007
2015-10-28
Legality and Availability of TCA Acid for Cosmetics

Can TCA acid be used in cosmetic formulations, and is it available for purchase from MySkinRecipes?

Cosmetics Cosmetic Application Drug Formulation Ingredient Availability Prohibited Substances Regulatory Compliance
Posted by kaiwhan.1987
2015-10-28
Formulating a Scrub: Adding Water, Preservatives, Emulsifiers, and Active Ingredient Compatibility (B3, Glucosamine)

I am formulating a scrub and plan to use orange peel and apricot scrub beads. I have some questions regarding the formula: 1. If I add water to the formula, which preservative...

Cosmetics Emulsifier Ingredient Interaction Preservation Scrub Water-based Formulation
Posted by ning_sarinee
2015-10-28
Revised Formula and Mixing Instructions

Could you please provide a revised formula and detailed mixing instructions for a cosmetic product?

Cosmetics Cosmetic Formulation Formulation Adjustment Mixing Procedure Stability Texture
Posted by mamrakjung
2015-10-28
Natural Sunscreen Formulation: Addressing White Cast and Texture

I want to develop a natural-focused sunscreen formulation using Zinc Oxide Nano and Titanium Dioxide Nano. The desired texture should be lightweight, non-whitening,...

Cosmetics Cream Natural Formulation Sunscreen Formulation Texture Modification White Cast Reduction
Posted by busaba1981
2015-10-28
Flora Fix Discontinuation and New Product Availability

Could you please provide an update on the availability of the product Flora Fix? Is it still being sold, or will there be a replacement product?

Cosmetics Development Status Discontinuation Effectiveness Product Availability
Posted by kanyarach
2015-10-28
Suitable Colors for CP/HP Bar Soap Making

What types of colors are suitable for making CP (Cold Process) and HP (Hot Process) bar soaps, considering the high alkalinity and heat involved in the process?

Cosmetics Bar Soap Coloring Heat Stability High pH Saponification
Posted by tbc.88
2015-10-28
Formulating Spa Milk Oil and Infused Oil

I would like to make two types of oil products: 1. **Spa Milk Oil (Oil to Milk Cleanser/Massage Oil):** I want an oil that turns milky when it comes into contact with water,...

Cosmetics Cleansing Oil Emulsification Massage Oil Oil-based Formulation Preservation
Posted by kissykissy.shop
2015-10-27
Making cream from oils and water - Preservatives and Ratios

I am planning to make a cream using rosehip oil, jojoba oil, and water. I have two main questions: 1. Is it necessary to include a preservative in this formulation? 2. How can...

Cosmetics Amount Calculation Cosmetic Formulation Cream Emulsification Preservation
Posted by pii9gy95
2015-10-27
Rose Hip Oil Color Variation and Quality Analysis

What is the reason for the color variation in Rose Hip Oil (Extra Virgin Organic Fresh), and does this color difference affect its quality? Can you provide the Certificate of Analysis?

Cosmetics Certificate of Analysis Color Changing Ingredient Origin Ingredient Quality Oil
Posted by matchbokz
2015-10-27
Organic Mineral Powder Formulation for Coverage and Oil Control

I am interested in mixing my own organic mineral powder. What ingredients should I use to achieve good coverage and oil control?

Cosmetics Coverage DIY Formulation Mineral Makeup Oil Control Powder
Posted by yokmonprapa.max
2015-10-27
Adjusting Formula Percentage when Adding Vitamin B6

In my formula, if I add 1% of Vitamin B6, do I need to reduce the amount of distilled water by 1% to ensure the total percentage remains at 100%?

Cosmetics Cosmetic Formulation Formulation Adjustment Ingredient Addition Ingredient Ratio Water-based Formulation
Posted by ckittima01
2015-10-26
Simple Zinc Oxide Liquid Powder Formula

How can I make a simple, stable liquid powder formula using Zinc Oxide that provides a powdery feel and sun protection?

Cosmetics DIY Formulation Liquid Powder Powdery Feel Stability Sun Protection
Posted by chavanat_pongy
2015-10-26
How to mix Double Hyaluron Liquid and preservative requirements

I would like to know how to mix **Double Hyaluron Liquid**. How should it be mixed, or can it be used directly? Does it require adding a **preservative**?

Cosmetics Mixing Procedure Preservation Serum Usage Method pH Suitability
Posted by venelone
2015-10-26
Using Irritation Reducers with Activated Resorcinol

Regarding the recommendation to use Activated Resorcinol with Bisabolol to reduce irritation, can other ingredients be used instead? Specifically: * Can Allantoin be used? *...

Cosmetics Formulation Adjustment Ingredient Alternatives Skin Brightening Skin Irritation Soothing Effect
Posted by jn_andy
2015-10-25