The beauty industry is constantly evolving, and one of the most recent innovations making waves is the use of UV LED light in lash extension application. This technique has sparked considerable debate and interest, with beauty professionals and clients alike eager to understand its benefits and potential risks. This article delves into the science, safety, application, and care of UV LED lash extensions, providing a comprehensive overview for anyone considering this cutting-edge treatment.
UV LED lash extensions involve using a specialized adhesive that is cured with UV LED light to bond lash extensions to natural lashes. Unlike traditional lash extensions, which rely on air-drying adhesives, this method uses a beam of UV LED light to accelerate the curing process. This innovative approach aims to address common issues such as sensitivity to traditional lash glues, prolonged drying times, and the impact of environmental factors like humidity and temperature on adhesive performance.
LED UV Gel refers to cyanoacrylate-based adhesive resins that are cured or dried by ultraviolet light emitted from LED bulbs. Cyanoacrylate is the primary ingredient in many adhesives, including nail glue and superglue. Standard air-drying adhesive resins made from cyanoacrylate monomers are cured by exposure to water vapor in the air, which is why lashes tend to dry more quickly in humid conditions.
UV light-cured adhesive resins include a non-reactive version of cyanoacrylate and a photoinitiator. The photoinitiator becomes "photo-excited" upon exposure to the high-energy light particles in UV light, also known as photons. The energy harnessed by these photoinitiator molecules powers the immediate and rapid polymerization of the entire segment of adhesive.
It's important to differentiate between UV light and LED. UV refers to the type of light, while LED refers to the type of lightbulb. Ultraviolet (UV) Light refers to a specific range of light on the Electromagnetic Spectrum. UV Light is technically between 100-400 nm in wavelength - this is further divided into UVA (315-400 nm) UVB (280-315 nm) and UVC (100-280 nm).
Read also: Is Your Lash Glue Vegan?
In traditional lash extensions, the polymerization (curing) of the adhesive resin is catalyzed by exposure to water vapor molecules in the air. In contrast, adhesive resins intended for UV light curing include a photoinitiator that becomes "photo-excited" upon exposure to UV light. The energy harnessed by these photo-initiator molecules powers the immediate and rapid polymerization of the adhesive.
UV light is a form of non-ionizing radiation that can negatively affect the function of cells at the molecular level. It is well-documented to be carcinogenic and is the primary culprit behind deadly cancers such as melanoma. However, as of yet, there have been no documented cases of any clinical symptoms directly linked to UV nail manicuring or lash extensions.
A 2023 study in nail salon UV lamps demonstrated carcinogenic possibilities within Petri dishes in lab settings. However, the results are not directly applicable to human or animal models, as the corneocytes in the dermis block a great deal of UV radiation, whereas a Petri dish does not.
Several steps can be taken to minimize the risk of UV exposure during LED extensions:
The LED light used in UV lash extensions is typically 5 watts, which is much less powerful than a nail lamp (50+ watts) or a tanning bed (1,500-2,000 watts). Each press of the foot pedal exposes the lashes to the UV light for just 2 seconds.
Read also: Duo Lash Glue: Ingredients Explained
For extra protection, UV blocking tape or regular lash pads can be used during the procedure to shield the client’s eyes. It’s crucial that the client’s eyes remain closed during the treatment.
To ensure safety and efficacy, lash artists must be properly trained and certified in the use of UV LED lash extension systems. This training should cover the science behind the technology, safety protocols, application techniques, and aftercare instructions.
LED lash adhesive resins are clear and free of carbon black pigments, which are a major source of allergic reactions for clients. They also don’t release residual fumes when lashes are moistened during cleansing or bathing.
LED lash extensions cure immediately due to the photon-mediated polymerization. This means there is no drying time post-service, and clients can get their lashes wet immediately. The immediate drying also prevents "stickies," the unintentional adhesion of adjacent lashes to each other.
Because the lashes are fully dry at the end of the service, clients don’t need to avoid water.
Read also: Natural Lash Glue Alternative
Clients often remark that the lashes feel much "lighter" than traditional lash extensions. The slow drying period of traditional adhesives causes a constriction and retraction of the natural lashes that can be painful or uncomfortable, whereas the instant drying of LED Gel lashes is painless.
Because the lashes are fully cured before the clients leave, there is a much lower risk for unexpected lash fallout and far better retention of the lash extensions. Clients can’t damage lash longevity as badly! UV lash extensions have strong retention when applied correctly and can last 2 to 3 weeks, similar to traditional lash extensions. Their bond is not affected by common triggers like oil, sweat, or humidity, which is a major plus for clients.
One of the touted benefits of UV lash extensions is the potential for less irritation compared to traditional lash extensions. Some users have reported no reactions to UV glue, suggesting it may be a viable option for those with sensitivities to traditional adhesives.
UV lash extensions offer strong retention when applied correctly, lasting about 2 to 3 weeks, similar to traditional lash extensions. The cured adhesive bond is not affected by common triggers like oil, sweat, or humidity, which is a major advantage for clients seeking long-lasting results.
The curing process is significantly faster with UV lash extensions, which can reduce overall application time. This can be particularly beneficial for lash artists looking to increase their efficiency and accommodate more clients.
To ensure the best adhesion, it’s critical to fully cleanse the lashes prior to the service to remove any oils, cosmetics, and detritus. Some salons may use a protein remover or degreaser, while others prefer to use a lash cleanser or shampoo.
The lash artist will apply pads under the eyes to protect you from the sharp ends of the tweezer, as well as applying sensitive tape over your bottom lashes to prevent from accidentally taping your lashes together.
Based on your preferences & the results of your initial consultation, the lash artist will map out the ideal design for your lash extensions using various lengths, curls, and diameters.
Lash Extensions are painstakingly applied one-by-one to each of your natural lashes, requiring each lash to be carefully isolated by a tweezer to ensure that lashes are not sticking together. After every lash is applied, the lash artist will apply about 1-3 seconds of LED UV light.
After all lashes are cured, the lash artist will spend 1-3 minutes completing a final curing of all of the lashes. All gel pads and tapes will be removed and a final Nanomisting is optional.
The presence of any oils, cosmetics, skincare, etc. can make it difficult for the lashes to fully adhere to your lashes.
It’s important to ensure that each lash is cured for 1-3 seconds depending on the instructions provided with the adhesive. Lashes should also be fully cured for 1.5-3 minutes at the end of the service.
If too much glue is used, it can lead to whitish balls or bulbs near the base of the lashes.
Many lash artists use formulas purchased from online marketplaces that are mass-produced and may be too strong for lashes.
Currently, there are no specific legal regulations surrounding LED Gel Lashes. However, it is advisable to check with the agency that regulates the practice of cosmetology and esthetics in your region. Additionally, it is important to verify with your insurer whether they cover LED Lashes, as most major insurers are reportedly covering these services.
A specific LED waiver form is not necessary, but clients should sign a general waiver of liability. This waiver ensures that the salon is not liable for any damage outside of damages related to mistakes or improper application of the service. The waiver can be printed on paper or included in form software, with a signature to ensure the document is binding.
The aftercare protocol for LED Gel Lash Extensions is quite similar to traditional Lash Extensions, with the exception of avoiding water for 24 hours.
LED eyelash extension treatments are growing in popularity, largely due to claims that they reduce exposure to the harsh fumes found in traditional lash adhesives (as the LED 'sets' the lash adhesive faster). However, reactions to lash glue are important signals that your eyes need a break. Even though LED lash systems may seem like a gentler option, they still use adhesives.
One key safety question surrounding LED lash treatments is whether they emit ultraviolet (UV) light, which is known to be harmful to the eyes. There is currently very little transparency around the specific wavelengths used in these systems.
If LED lash treatments do use UV or blue light, this raises serious safety concerns, particularly for eye health. A 2023 study from the University of California, San Diego, found that using a UV nail lamp for just 20 minutes resulted in 20-30% cell death in the exposed tissue.
If you're experiencing eye sensitivity, dryness, or irritation from lash extensions or LED systems, consider giving your eyes the break they deserve.
tags: #uv #led #lash #glue #information
