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Leucidal® Liquid SF | Natural Moisturizing Ingredient for DIY Vitamin C, Ascorbic Acid, & Hyaluronic Acid Powder Serum, Facial Lotion & Other Cosmetic Making Formulations, 1 oz

4.6 4.6 out of 5 stars 839 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Facial Serums by RESURRECTIONbeauty

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  • One of the best natural moisturizing antimicrobial additives available for DIY Vitamin C & Hyaluronic Acid Serums! This self-preserving cosmetic active provides MILD protection against bacteria, mold, and yeasts.
  • ECOCERT approved ingredient in Certified Organic products and is Salicylate and GMO FREE!
  • Leucidal Liquid SF is a probiotic-based ingredient created by the fermentation of Lactobacillus.
  • Leucidal Liquid SF is versatile and can be used in a wide range of cosmetic products.
  • Water soluble, stable up to 70°C, and for pH ranges 3-8. (Additional preservatives may be necessary to combine with this ingredient to offer complete broad spectrum protection.)

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Product Description

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Leucidal Liquid SF Natural Moisturizing Antimicrobial

Leucidal Liquid SF is a probiotic-based ingredient created by the fermentation of Lactobacillus in a defined growth medium. Lactobacillus is one of the species of microorganisms used to produce fermented products, such as kimchi and sauerkraut, a Korean dietary staple, from cabbage. Like many members of the lactic acid bacteria family, Lactobacillus is capable of restricting the growth of other microorganisms by acidifying its environment. However, Lactobacillus also produces novel antimicrobial peptides, known as bacteriocins, that are capable of providing broad spectrum antimicrobial protection. During the manufacturing process, lysozyme is added to the ferment filtrate to facilitate a controlled cell lysis to ensure the release of the antimicrobial peptides for maximized activity.

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Leucidal Liquid SF is a self-preserving cosmetic active that provides mild protection against bacteria, mold, and yeasts.

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Leucidal Liquid SF is a probiotic-based ingredient created by the fermentation of Lactobacillus.

Leucidal Liquid SF is versatile and can be used in a wide range of cosmetic products.

Lactobacillus is capable of restricting the growth of other microorganisms by acidifying its environment and producing novel antimicrobial peptides. These peptides, known as bacteriocins, are capable of providing broad spectrum antimicrobial protection.

Leucidal Liquid SF is water soluble and stable up to 70°C, and for pH ranges 3-8.

Example Recipe: Retinol Serum with Hyaluronic Acid (Basic Recipe)

  • ​1/4 tsp Sodium Hyaluronate (Hyaluronic Acid Powder)
  • 30-60 drops Leucidal Liquid SF
  • 1 oz Hydrosol and/or distilled water
  • 9-90 drops Retinol Liposome Cosmetic Additive (Depending on desired strength)

Leucidal Liquid SF works best with water-based recipes, like toners, and gels, like hyaluronic acid gel. It can be used as a secondary moisturizing preservative in lotions and creams, and in more complex formulations containing actives. For a broad-spectrum preservative in formulations containing active ingredients, use Leucidal SF Complete. Certain formulations may require additional preservatives in combination with this ingredient to offer complete broad-spectrum protection. Your own testing is recommended to ensure adequate preservation coverage.

Warning: This is not a finished product and is not meant to be used directly on the skin. If you are unfamiliar with how to use this item, please call RESURRECTIONbeauty for assistance! A preservative is not a substitute for proper sanitation procedures necessary for clean and safe cosmetic production.

This product may change appearance if exposed to cold temperatures during shipment or storage. If this happens, gently warm to 45-50°C and mix until normal appearance is restored.

Use Incorporate during the cooling phase of the process at temperatures lower than 70°C, With viscosity modifiers, it is best to add Leucidal Liquid SF prior to the thickener
Use Rate 2.0% - 4.0%
Application Aqueous formulations: serums, toners; Use in emulsions as a secondary supporting antimicrobial or alongside an anti-fungal/anti-mold ingredient
pH Stability 3-8
Appearance Clear to Hazy Liquid
Solubility Water soluble
Product Statements Non GMO, Vegan friendly, Not Tested on Animals, Gluten Free
INCI Lactobacillus Ferment
Leucidal Liquid SF Leucidal SF Complete broad-spectrum preservative
Leucidal Liquid SF Leucidal SF Complete
Customer Reviews
4.6 out of 5 stars
839
4.6 out of 5 stars
28
Basic serums, toners, gels
Lotions, Creams Secondary Preservative Primary Preservative
Broad-Spectrum
Formulations with active ingredients
Water-soluble

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.25 x 1.25 x 4 inches; 2.75 ounces
  • Date First Available ‏ : ‎ May 30, 2016
  • ASIN ‏ : ‎ B01FWS6RAQ
  • Customer Reviews:
    4.6 4.6 out of 5 stars 839 ratings

Important information

Safety Information

THIS IS NOT A FINISHED PRODUCT AND IS NOT MEANT TO BE USED DIRECTLY ON THE SKIN! Leucidal is a registered trademark of Active Micro Technologies, LLC.

Ingredients

Lactobacillus Ferment

Directions

Use rate: 2.0% - 4.0%.

Legal Disclaimer

THIS IS NOT A FINISHED PRODUCT AND IS NOT MEANT TO BE USED DIRECTLY ON THE SKIN! Leucidal® is a registered trademark of Active Micro Technologies, LLC.

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
839 global ratings

Customers say

Customers like the ease of use, quality, natural and preservative of the product. They mention that it works perfectly for lotions, is a powerful preservive system that is based on natural science, and provides a nice shelf life. However, some customers dislike the effect on mold.

AI-generated from the text of customer reviews

34 customers mention31 positive3 negative

Customers are satisfied with the quality of the preservative. They mention that it works well, is excellent, and is perfect for lotions. Some say that only a small amount works wonders and that the dropper bottle is easy to use. Overall, most are happy with their purchase and recommend it to others.

"...I've used it in my natural facial scrub, and it works really well. The aloe vera gel and plant oils blended easily. I highly recommend it!" Read more

"Working well in the serums I have made. No reactions of any sort on myself or clients. Keeps products very stable." Read more

"...first time I've made cosmetics of this type, and so far this has worked very well...." Read more

"...I use their recipes and am pleased with the results...." Read more

12 customers mention9 positive3 negative

Customers like the shelf life of the product. They say it gives DIY lotions a nice shelf life, keeps them fresh, and prevents them from going bad fast. Some mention that the product works like a charm and helps preserve their DIY products.

"...to prevent bacterial growth and contamination, and to extend the life of products. It works! A little goes a long way...." Read more

"...Recipe and amounts used were identical and preservtive as stored appropriately...." Read more

"...The bottle will last for quite some time since you only use a few drops per batch. No problems at all with any skin sensitivity." Read more

"I like this product because it kept my homemade lotion from going bad fast" Read more

11 customers mention8 positive3 negative

Customers like the preservative. They say it works as a natural preservator, is good for lotions, and is a powerful preservive system based on natural science. They also appreciate that it is able to work perfectly and is safe to use in place of parabens.

"...Togther they make a powerful preservative system, "that is based on natural science. &#..." Read more

"This is the best natural preservative for all my diy serums, lotions and moisturizers. I'm very happy with it and will always buy from this seller...." Read more

"Not too satisfied with this preservative the only way it seems that you could get the beat benefit from it is if you use the highest percentage that..." Read more

"...to a shampoo I made and it hasn't spoiled so I assume the preservative works perfectly." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the natural ingredients of the product. They say it is a useful product for making DIY projects.

"...It's natural, easy to use, and a must for those who love making homemade skincare products...." Read more

"...of mind to know bacteria will not be growing in my product and it is natural." Read more

"Very efficient, well time will tell, affordable and natural. The only CON is it doesn't say the dosage to be used" Read more

"Thank you! Very good, natural and useful product for the making diy serums.💐..." Read more

4 customers mention4 positive0 negative

Customers appreciate the ease of use of the product. They mention that the packaging is good and the dropper bottle is easy to use.

"...It's natural, easy to use, and a must for those who love making homemade skincare products...." Read more

"Product is easy to use, until time passes with no problems with creams and serums going bad I can not speak to the effectiveness...." Read more

"Good packaging. Easy to use." Read more

"Only a small amount works wonders. I like the ease of the dropper bottle too." Read more

3 customers mention3 positive0 negative

Customers like the scent of the product. They mention that it has a very slight vegetal scent that reminds them of asian radish, daikon.

"...It has almost no scent to it, and it works really well to bind liquids and oils together...." Read more

"...It has a very slight vegetal scent (reminds me of the asian radish, daikon) but it's not offensive and it quickly dissipates before my serum or..." Read more

"...The product smell fresh will continue to monitor" Read more

7 customers mention2 positive5 negative

Customers are dissatisfied with the product's effectiveness in preventing mold. They mention that the product grew mold within two days, and the lotion got fungus in it within one month. Some customers also report that the lotion causes skin irritation and breakouts overnight.

"...it after the texture changed, it caused skin irritation and breakouts overnight - I realized it had gone bad, and threw the rest out...." Read more

"...This grew mold within 2 days, the Linatural has been going strong for 2 months. They cost the same- why would anyone choose this?" Read more

"...your lotions and other water based emulsions safe for use and free of bacteria, mold, and other contaminants...." Read more

"This product doesn't work for preventing mold, in fact I believe it causes it. Without preservative my product lasts a couple weeks without molding...." Read more

So far so good
5 Stars
So far so good
I put it in my homemade project for the pass 20 days still going strong. The product smell fresh will continue to monitor
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Top reviews from other countries

Joanna
5.0 out of 5 stars Hm... Am Not Sure
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Amazon Customer
1.0 out of 5 stars Doesn't preserve at all
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5.0 out of 5 stars Satisfy
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