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    Leucidal Complete Preservative for Cosmetics
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    Leucidal Liquid Radish Root
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    Leucidal SF Max Lactobacillus Ferment
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Collection: Preservatives

Natural Antimicrobial to Protect your Lotion

Antimicrobials Protect Skincare Products

If you are making fresh skincare used right after it's made, you do not need to add a preservative.

However, if you consider storing your product for more than a day or 2, there is no doubt about it; you need to use a preservative.

Antimicrobials help protect your DIY formulas from microorganisms like bacteria and fungi that can contaminate your product.

When using an antimicrobial, you must consider a broad spectrum and work on all contaminants, including 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. For example, while some are only effective on bacteria, others are only effective on fungi. So it is essential 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.

For water-based products, use a broad-spectrum like Leucidal® Complete. For Oil-based cosmetics, use Leucidal® Liquid or Max.

Radish Root, Complete, SF Max are 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 protects against mold and fungi, our Leucidal® Complete is for you!

If you are an experienced lotion maker and know how the antimicrobial will perform with your custom formula, it's recommended to use a 2-4% level of Leucidal® Liquid or Complete.

Typically, you will extend the shelf life of your product for 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 recipe 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. Make sure that you add it when the formula is below 105 degrees Fahrenheit. Incorporated with a handheld mixer into your formulations until transparent.

What are the differences In Leucidal Products?

Leucidal® Liquid provides mild broad-spectrum antimicrobial protection and is produced by fermenting the radish root in Leuconostoc kimchi. It does not provide fungal protection. Radish Root is the original product that started the natural antimicrobial revolution.

Leucidal® Complete: provides broad-spectrum antimicrobial and protects against mold, yeast, and fungus all in one product. It is a combination of fermented radish root and fermented lactobacillus with coconut (Cocos Nucifera). 

Leucidal® SF Max: probiotic-based protection created by fermenting Lactobacillus. Lactobacillus provides strong broad-spectrum protection and is part of the lactic acid bacteria. It works by acidifying the environment, which restricts the growth of microorganisms. However, it does not provide fungal protection.

What Leucidal® Product Should I use?
which Leucidal antimicrobial should I use?

For water-based formulas, use Leucidal® Complete.
If you are making an oil-based formula, use the Leucidal® Liquid Radish Root Ferment.
Any formulation needing strong broad-spectrum antimicrobial protection from Lactobacillus uses Leucidal® SF Max. For fungal protection, use gluconolactone.  

Tips for Successful Preservation of Products

1. Make sure your area and all supplies are clean and sanitized.
2. Check compatibility. Will your ingredients work together, or are they potentially incompatible?
3. Temperature and PH. Natural antimicrobials should be used at room temperature for easy incorporation.
4. Is your formula stable? If your product is unstable, it most likely will not pass a challenge test.
5. Avoid contamination. Make sure that utensils used during the preservation process are clean.
6. Package in airless bottles. Protect your formula from contaminants from the environment with airless bottles.

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 are available.
Video on How to use a Natural Antimicrobial System

This video will 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 them away as gifts or starting your line, you will 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. Expert formulators can use a lower concentration. But still, they 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 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 skincare
  • 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 - Germall plus, DMDM hydantoin, Imadozolidinyl Urea.
  • Isothiazolinones - broad-spectrum, non-carcinogenic, but can be irritating some individuals.
  • Phenoxyethanol - Optiphen is the most common name brand. It is considered a mild preservative and non-irritating and is 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 Antimicrobials and Preservatives (synthetic and natural):
  • 1,3-Dioxane
  • 1,2 Hexanediol
  • 2-Bromo-2-Nitro-1,3 Diol
  • AMTcide
  • Benzalkonium Chloride
  • Benzethonium Chloride
  • Benzyl Alcohol
  • Butylparaben
  • Caprylyl Glycol
  • Chlorhexidine Acetate
  • Chlorphenesin
  • Chloroxylenol
  • Climbazole
  • Cosgaurd
  • Dehydroacetic Acid
  • Diazolidinyl Urea
  • Dichlorobenzyl Alcohol
  • DMDM Hydantoin
  • Ethylhexyglycerin
  • Ethylparaben
  • Formic Acid
  • Geogard 221
  • Glutaral
  • Gluconate
  • Grapefruit Seed Extract
  • Hexamidine Isethionate
  • Hinokitol
  • Idopropynyl Butylcarbamate
  • Imidazolidinyl Urea
  • Isobutylparaben
  • Isopropylparaben
  • Lactobacillus
  • Lactoperoxidase
  • Leucidal® Liquid
  • Leucidal® Complete
  • Leucidal® Liquid SF Max
  • Liquid Germall
  • Methenamine
  • Methylisothiazolinone
  • Methylchloroisothiazolinone
  • Methyldibromo Glutaronitrile
  • Methylparaben
  • Optiphen
  • Optiphen Plus
  • Pentylene Glycol
  • Phenethyl Alcohol
  • Phenxyisopropanol
  • Phytocide
  • 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:
  • Active Micro-Tech.
  • 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
  • The Hilson
  • The Hall Star Company
  • Variation Sri
  • Vevy Europe Spa