Eyelash Extension Product FAQ
To make your own lash shampoo, dilute Prolong Lash Cleanser Concentrate using a ⅓ concentrate to ⅔ distilled water ratio. Mix the two in a sterilized foaming pump bottle. Exact measurements depend on the size of your bottle: for example, in a 150ml bottle, use 50ml cleanser concentrate & 100ml distilled water.
This dilution method ensures the formula performs as intended while staying gentle and non-irritating for use around the eyes.
For more dilution information you can refer to this link to locate the dilution table.
It’s safe to use up to 18–24 months. The cleanser concentrate expiry date is (printed on the original concentrate bottle) and also applies to your diluted cleanser, provided it is stored properly and mixed with distilled water.
Always use sterilized foaming pump bottles to prevent contamination.
Yes! You can safely and legally dilute Prolong Lash Cleanser Concentrate to create your own ready-to-use foaming pump lash shampoo, as long as you follow the recommended dilution ratios.
Note: If you're using the diluted cleanser for personal use or within your salon, you’re completely covered, no additional requirements apply.
If you plan to resell or gift the diluted product under your own label, the MoCRA Act may require you to complete a simple FDA registration as a “processor.”
The process is straightforward and affordable, and it helps ensure compliance with updated U.S. cosmetic regulations.
We recommend:
- Following the correct dilution method
Using distilled water. - Reviewing the MoCRA Act and FDA tools to confirm if registration applies to you. Find out more HERE.
Prefer a quick & easy option? You can also choose from our:
- FDA-Certified Prolong Lash Foaming Pumps (ready for resale)
- White Label Foaming Pumps (add your branding, no FDA certification required).
Yes, absolutely! Diluting Prolong Lash Cleanser Concentrate is legal and permitted under FDA guidelines.
If you're selling or gifting the diluted cleanser, you may need to register as a processor with the FDA under MoCRA regulations.
Don't let that put you off because it’s a simple, affordable process.
For salon or personal use, no registration is required. For resale or gifting, processor registration may apply.
Rest assured:
• Dilution is allowed
• Prolong Lash Cleanser remains the original manufactured product
• You are not classified as a manufacturer when diluting
We also offer ready-to-resell Foaming Pumps and White Label options to make compliance even easier.
You can access more information here on the FDA Certification page.
Under MoCRA (Modernization of Cosmetics Regulation Act), you may need to register with the FDA as a processor if you plan to sell or gift diluted lash cleanser to customers.
- Using diluted cleanser in-salon or for personal use? No registration is needed.
- Selling or gifting diluted cleanser? You may need a simple, affordable FDA registration as a “processor.”
In this case Prolong Lash remains the official manufacturer, and by diluting, you’re classified as a “filler” or “processor,” not a manufacturer. Find out more HERE.
Looking for a hassle-free alternative?
- Choose our FDA-certified Prolong Lash Foaming Pumps – pre-diluted and ready for resale Or
- Go custom with our White Label Foaming Pumps – add your branding, no certification needed.
No, Prolong Lash Cleanser contains no added synthetic fragrance. The light rose scent comes naturally from distilled rose water, which is created through a gentle steam extraction process.
Steaming real rose petals, capturing their essence in the water vapor, and then condensing that vapor creates a botanical infusion known for its soothing, skin-calming properties.
This natural extraction method, adds a soft, fresh scent without introducing irritants or artificial perfumes. It’s one of the many ways we ensure Prolong Lash Cleanser is a gentle, effective lash shampoo, safe for use around the sensitive eye area.
To prepare a clean empty foaming bottle for your diluted lash cleanser, rinse your foaming pump bottle thoroughly with warm, pre-boiled water and place it in a clean environment to air dry.
Prolong Lash Cleanser Concentrate is a powerful base that must be diluted with distilled water before use. Our Foaming Pump Cleanser is already pre-diluted, manufactured to exact specifications, and ready to use straight from the bottle.
Both are made with the same high-quality formula, but the foaming pump offers convenience and consistency without the need for dilution.
Yes! We offer editable retail label templates that you can customize and print. All you need is a free Canva account.
These labels are perfect for salons offering Prolong Lash Cleanser in retail-friendly packaging. Simply edit, print, and apply to your bottles to showcase your brand.
We recommend using 2 pumps per wash, which yields approximately 75 washes from one 100ml Foaming Pump.
The required amount depends on your bottle size. The standard dilution is ⅓ cleanser concentrate to ⅔ distilled water.
For a 150ml bottle, use 50ml concentrate and 100ml distilled water. Refer to our dilution table on the concentrate page for more information.
Depending upon your empty bottle, you can make up to 15 full-size cleansers (100ml each) from a 1-liter bottle of Prolong Lash Cleanser Concentrate, following the standard dilution formula. Use our dilution table on the concentrate page to match bottle sizes and quantities.
Yes! Prolong Lash Cleanser is:
- FDA-certified
- Vegan-friendly
- Dermatologically tested
- Ophthalmologically tested
ALS Clinical Study No. 22-047 confirms it is: Gentle and non-irritating, even around the eye area. Gentle on sensitive skin, and shown to be non-irritating to skin and eyes
What’s in a name? The difference between a lash cleanser and a lash shampoo is simply the wording.
Yes, you can consider Prolong Lash Cleanser a lash shampoo. The purpose of Prolong Lash Cleanser is to safely and effectively clean eyelash extensions. It has been specially formulated for this purpose, just like shampoo is.
This formula is also FDA-certified and has passed rigorous testing to prove its efficacy and safety. Don’t let word semantics get you down.
The expiry date printed on your Prolong Lash Cleanser Concentrate bottle applies to the diluted version, as long as distilled water is used and proper mixing/storage guidelines are followed. You can find the dilution table on the concentrate page.
This is completely normal and safe. Prolong Lash Cleanser includes natural steam extracted rose water, and subtle yellow tinting may occur due to variations in the raw botanical ingredients. This does not affect the performance or safety of your lash shampoo in any way.
The Oil Free Eyeliner should be used within 6 months of opening.
You can expect approximately 120 applications from each eyeliner.
Yes, Prolong Lash Cleanser Concentrate, Prolong Lash Foaming Cleanser, and Prolong Lash Eyeliner are vegan. While they are not yet Certified Vegan, we are working on the certification process.
Prolong Lash Cleanser Concentrate and Prolong Lash Foaming Cleanser are vegan and are not tested on animals.
Think of our cleanser like you would a hair shampoo. Lather it up for a deep cleanse and thoroughly wash away with fresh water cleansing, ensuring no residue remains on the lashes or skin.
The expiry date of the cleanser can be found on the bottle itself. However, the expiry is generally between 18-24 months.
The expiry date printed on the cleanser concentrate bottle applies to the diluted concentrate in the travel pen, provided that distilled water has been used.
You can get approximately 15 cleanses out of the travel pen.
Simply mix 10ml of concentrate and 20ml of distilled water into a measuring cup. With a measuring tool, add 3ml of the cleanser mix into each travel pen. For additional information on how to mix the cleanser into travel pens, please see the following video:
No, the travel pens will not produce foam as there is no spring mechanism in the pen.
While the cleanser won't foam, it still works effectively and is entirely safe for use.
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Become a Prolong Lash Partner.
Our Partner Program provides our committed customers with a means of purchasing our products at discounted prices. The program allows you to take advantage of these discounts when you resell our products to your clients by keeping the difference.
