Natural Antimicrobial to Protect your Lotion Antimicrobials Protect Skincare Products

If you are making fresh skin care that is used right after it's made, then you do not need to add a preservative. However, if you are considering storing your product for more than a day or 2, there is no doubt about it, you need to use a preservative. Antimicrobials help to protect your DIY formulas from microorganisms like bacteria and fungi, that can cause contamination of your product. When using an antimicrobial, you will need to consider if it is a broad spectrum and can work on all types of contaminants. Including both, bacteria and fungi, that can present themselves. Below is a list of different preservatives and the manufacturers that produce them. Even though it's not an exhaustive list, it does show many options when choosing a natural antimicrobial over a synthetic preservative. Do keep in mind, that not all antimicrobials are broad spectrum. While some are only effective on bacteria, others are only effective on fungi. So it is important to do your diligent research to see what will work best for your products.

Finding a Natural Alternative to Synthetic Preservatives

At Skin Perfection, we offer Leucidal Liquid or Radish Root. It is a mild, broad-spectrum antimicrobial that can protect your custom formulations from microorganisms. Radish Root is recommended to be used at a 4% concentration for beginning formulators. It is easily added to your formulation at room temperature. For an all-natural broad-spectrum antimicrobial that also protects against mold and fungi, our Leucidal Complete is for you! If you are an experienced lotion maker and know how your antimicrobial will perform with your custom formula, then it is recommended to use either the Leucidal Liquid or Complete at a 2 - 4% usage level. This will typically extend the shelf life of your product up to 12 months but it is your responsibility to test the shelf-life. If you plan on placing your custom formula on the market, we recommend every formula undergo cosmetic challenge testing.

To add Leucidal Liquid to your product:
During the cooling phase or at the end of formulation, Add a 4% concentration of the Radish Root Ferment. For best results, use cold pressed or incorporate when the formula is below 158 degrees Fahrenheit.

To add Leucidal Complete:
Follow the same instructions as the Radish Root Ferment. Leucidal Complete can be hazy so make sure that you add it when the formula is below 105 degrees Fahrenheit and Incorporated with a handheld mixer into your formulations until clear.

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Leucidal® Complete is the first all-natural broad-spectrum antimicrobial to keep your formulations free of bacteria, yeast, fungi, and mold.
Using a natural antimicrobial such as Leucidal® Liquid made from Radish Root can help keep your skincare creations free from bacteria.
Leucidal® SF Max used Lactobacillus Ferment to provide all-natural broad-spectrum antimicrobial protection and to keep your formulations free of bacteria.

Benefits of Natural Antimicrobials 

  • Consumers like to have natural ingredients in products
  • Allow for natural and organic labeling
  • Have moisturizing properties
  • Mild and broad-spectrum versions available

Video on How to use a Natural Antimicrobial System

In this video, we are going to show you how to naturally preserve an anti-aging serum with an antimicrobial called Leucidal Liquid or Radish Root. It will help your homemade serums last longer and stay fresher.

At Skin Perfection, we offer Leucidal Liquid in a half ounce size. We also have it available in a larger 4 ounce or 16-ounce size. This way if you only make a serum once every two to three months, you have the smaller size option. When you begin making larger batches and giving away as gifts or starting your own line, your going to want to purchase a larger size.

So I have a one-ounce anti-aging serum here, and we need to add the Leucidal Liquid at a 4% concentration. If you are a beginner, we highly suggest using the 4% concentration. Experienced formulators can use a lower concentration, but still, need to be very cautious as Radish Root is a mild antimicrobial.

If you want to make a water-based product, we highly recommend using the Leucidal Complete as it will provide broad-spectrum protection against yeast, fungi, and mold.

A 4% concentration add to a 1-ounce product would be approximately 19 drops. Then, blend your mixture until well mixed which is usually about two minutes.

5 most common preservatives used in skin care

  • Parabens - germ all, Methylparaben, Ethylparaben, Propylparaben. Typical use levels .1 to .3 %. Consumers see parabens as dangerous. Have been known to cause skin sensitivities or reactions in individuals who are sensitive to chemicals.
  • Formaldehyde releasers - germ all plus, DMDM hydantoin, Imadozolidinyl Urea.
  • Isothiazolinones - broad-spectrum, non-carcinogenic, but can be irritating some individuals.
  • Phenoxyethanol - Optiphen is the most common name brand. Considered a mild preservative and non-irritating. Often used with Sodium Benzoate or Potassium Sorbate for broad-spectrum protection.
  • Organic Acids - Potassium Sorbate, Sodium Benzoate, Anisic Acid. Considered more natural than traditional preservatives. Must use high levels of and in a product with a PH of 2 - 6.

List of Different Preservatives (synthetic and natural):
  • 1,3-Dioxane
  • 1,2 Hexanediol
  • 2-Bromo-2-Nitro-1,3 Diol
  • Benzalkonium Chloride
  • Benzethonium Chloride
  • Benzyl Alcohol
  • Butylparaben
  • Caprylyl Glycol
  • Chlorhexidine Acetate
  • Chlorphenesin
  • Chloroxylenol
  • Climbazole
  • Dehydroacetic Acid
  • Diazolidinyl Urea
  • Dichlorobenzyl Alcohol
  • DMDM Hydantoin
  • Ethylhexyglycerin
  • Ethylparaben
  • Formic Acid
  • Glutaral
  • Grapefruit Seed Extract
  • Hexamidine Isethionate
  • Hinokitol
  • Idopropynyl Butylcarbamate
  • Imidazolidinyl Urea
  • Isobutylparaben
  • Isopropylparaben
  • Lactoperoxidase
  • Leucidal Liquid
  • Leucidal Complete
  • Methenamine
  • Methylisothiazolinone
  • Methylchloroisothiazolinone
  • Methyldibromo Glutaronitrile
  • Methylparaben
  • Pentylene Glycol
  • Phenethyl Alcohol
  • Phenxyisopropanol
  • Piroctone Olamine
  • Polaminopropyl Biguanide
  • Polymethoxy Bicyclic Oxazolidine
  • Potassium Sorbate
  • Propylparaben
  • Quaternium-15
  • Quaternium-73
  • Silver Chloride
  • Sodium Benzoate
  • Sodium Hydroxymethylglycinate
  • Sorbic Acid
  • Thimerosal
  • Tinosan
  • Triclocarban
  • Triclosan
  • Urea

Major Cosmetic Preservative Suppliers:

  • Acme
  • BASF
  • Biophil Italia SPA
  • Carlise International Corp.
  • Dow Chemical Company
  • Evonik
  • Guangzhou DX Chemical Co. LTD
  • Indo Gulf Company
  • Induchem
  • Lonza
  • Kinetic Technologies
  • Marco
  • Mason Chemical Co.
  • Merck
  • MMP Inc.
  • Premier Specialties, Inc.
  • Rita Corp.
  • Solabia Group
  • Stepan Company
  • Th Hilson
  • The Hall Star Company
  • Variation Sri
  • Vevy Europe SpA