Browse Questions and Answers

How can I change the scent of an existing Nivea lotion to a fruity or fresh morning scent?

I have two questions regarding solid perfume sticks: 1. What is the average shelf life of solid perfume sticks? I read in a previous post that this type of product is made by...

After using **Stabilized Vitamin C (Natural-C Glycol™) Serum**, I noticed yellow-orange discoloration on my cuticles and nail edges. Is this normal, and what causes it?

I want to make a tamarind body scrub that can be stored at room temperature without refrigeration. What safe preservative should I use, and what is the best way to prepare the...

I want to make a gel formula for oily skin using the following ingredients. Is this formula okay? * Purified Water: 87.2% * Safe-B3 (Vitamin B3, Niacinamide): 5% * Pure MSM...

What is the current availability status of Silicone Gel (Ultra Clear)? Can Silicone Gel (Thick & Smooth) be used as a substitute, especially for sunscreen formulations?

I am interested in formulating nail polish. I would like to know if the following ingredients can be used and how they function in a nail polish formula: * Polyester Film *...

Could you please explain the difference between N8000 shampoo base (Sodium Lauryl Ether Sulfate) and Sulfate Free Shampoo Base? Also, what is the price per kilogram for Sulfate...

I added Fractionated Coconut Oil to my pearl shampoo formulation, but it separated and formed a white film. 1. Why did this happen? 2. How can I fix this issue in the future?...

1. Can Lanolin be mixed into pearlized shampoo? Will it cause the shampoo to separate into water and pearlizer layers? 2. Which oil is better for dissolving Lanolin Natural...

How can I use my Gac fruit extract, which is dissolved in Propylene Glycol, to make a serum or essence? What are the recommended bases and mixing steps?

I have several questions regarding ingredient shelf life, packaging, and formulation: 1. When an ingredient specifies "Syringe shelf life 60 days", does this mean it only lasts...

Could you please provide the usage instructions, solubility information, and recommended usage rates for Phospholipid (Hydrogenated Lecithin)? Specifically, I would like to...

When formulating with Ichthammol, is it necessary to include oil or wax for optimal skin penetration, or can effective formulations be made without them?

I am trying to create a cream for dry skin that has a similar texture to a product containing the following ingredients: * Cetyl Alcohol * Cetearyl Olivate * Beeswax *...

I have an existing cream base (100g) and want to add Safe-B3 (Vitamin B3) to achieve a 4% concentration. I know the correct way is to mix 4g of Safe-B3 with 96g of cream, but...

I have oily skin and recently underwent laser treatment. My skin is experiencing redness, peeling, and scabbing. Clinic products are quite expensive. Could you recommend some...

I am making a cleansing water and want to use a preservative blend similar to Optiphen Plus. Optiphen Plus consists of `Phenoxyethanol`, `Caprylyl Glycol`, and `Sorbic Acid`. I...

1. What is the pH of Atopi-Telmesteine™? 2. Please check the compatibility of the following ingredients in a clear glycerin bar soap formulation, considering pH and stability:...

How can I formulate a powder clay mask that is mixed with water before use to achieve the following benefits: smooth skin, reduced dark/red spots, skin brightening, and pore tightening?