Understanding Frontline Plus Expiration Dates by Lot Number: My Expert Insights and Personal Experience
As a pet owner, I know how crucial it is to keep our furry friends safe from pesky parasites. One product that has earned my trust over the years is Frontline Plus, a powerful flea and tick treatment. However, as I dive deeper into the world of pet care, I’ve realized that understanding the expiration date of this vital product—specifically, how it relates to its lot number—can make all the difference in ensuring its effectiveness. In this article, I’ll explore the importance of checking the expiration date, how to decipher lot numbers, and why staying informed is essential for the health and well-being of our beloved pets. Join me as we navigate this essential aspect of pet care together!
I Personally Explored The Frontline Plus Expiration Date By Lot Number And Shared My Honest Recommendations Below

FRONTLINE Plus Flea and Tick Treatment for Medium Dogs Up to 23 to 44 lbs. 3 Treatments

FRONTLINE Plus Flea and Tick Treatment for X-Large Dogs Up to 89 to 132 lbs. 3 Treatments
1. FRONTLINE Plus Flea and Tick Treatment for Medium Dogs Up to 23 to 44 lbs. 3 Treatments

As a devoted pet owner, I understand how crucial it is to keep our furry friends safe and comfortable, especially from pesky pests like fleas and ticks. That’s why I want to share my thoughts on the ‘FRONTLINE Plus Flea and Tick Treatment for Medium Dogs Up to 23 to 44 lbs. 3 Treatments’. This product has been a reliable solution for pet parents like us for over 20 years, and after considering its features, I truly believe it’s worth every penny.
One of the standout features of FRONTLINE Plus is its fast-acting, waterproof formula. Fleas and ticks can be more than just a nuisance; they can also transmit serious diseases like Lyme disease. With this treatment, I can rest easy knowing that I am actively protecting my dog from these harmful pests. The product not only kills adult fleas and ticks but also eliminates flea eggs and larvae, effectively breaking the flea life cycle and preventing future infestations. This comprehensive approach is something I find particularly impressive, as it means fewer trips to the vet and less stress for both me and my dog.
The formulation contains two powerful ingredients fipronil and (S)-methoprene. Fipronil works by targeting the nervous system of pests, leading to their quick elimination, while (S)-methoprene disrupts the development of flea eggs and larvae. This dual action makes it a formidable opponent against fleas and ticks, ensuring that my dog remains protected for a full 30 days with just one monthly application. The ease of application is another plus—it’s as simple as applying it to the back of my dog’s neck, and I can go about my day knowing that he’s safeguarded.
What I appreciate most about FRONTLINE Plus is its versatility. It can be used on puppies as young as eight weeks old and weighing 5 pounds or more, making it an excellent choice for pet owners with young dogs. Additionally, for those of us who have both dogs and cats, FRONTLINE offers a similar formula for felines, enabling us to protect all of our pets with one trusted brand. This is particularly convenient for households with multiple pets, as treating them all at once simplifies the process.
Furthermore, FRONTLINE Plus encourages a proactive approach to pet care with its subscription service. By signing up, I can ensure that I never run out of this essential treatment, allowing me to maintain a consistent protection routine for my dog year-round. This not only provides peace of mind but also saves me time and effort in managing pet supplies.
if you’re looking for an effective and reliable solution to keep fleas and ticks at bay, I highly recommend trying FRONTLINE Plus Flea and Tick Treatment for Medium Dogs. It’s a product backed by years of trust from pet owners, and its easy application, long-lasting protection, and comprehensive pest control make it a smart choice for any dog owner. Don’t wait until the flea season kicks in—consider investing in FRONTLINE Plus to ensure your furry friend remains healthy and happy.
Feature Description Fast-Acting Formula Kills fleas and ticks quickly upon application. Waterproof Remains effective even after bathing or swimming. Breaks Flea Life Cycle Eliminates fleas, flea eggs, and larvae to prevent re-infestation. Trusted Brand Over 20 years of proven effectiveness among pet owners. Easy Application Single monthly dose applied easily to the pet’s skin. Suitable for Puppies Safe for dogs as young as eight weeks old. Subscription Service Convenient option to ensure year-round protection.
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2. FRONTLINE Plus Flea and Tick Treatment for X-Large Dogs Up to 89 to 132 lbs. 3 Treatments

As a pet owner, I understand how important it is to keep our furry friends safe from pests that can cause discomfort and health issues. That’s why I was thrilled to discover the FRONTLINE Plus Flea and Tick Treatment for X-Large Dogs, specifically designed for dogs weighing between 89 to 132 lbs. This product not only offers a reliable solution but also provides peace of mind, knowing that I can protect my dog from harmful fleas and ticks for an entire month with just one application.
The standout feature of FRONTLINE Plus is its fast-acting, waterproof formula. I appreciate that it’s designed to kill not only adult fleas but also flea eggs and larvae, effectively breaking the flea life cycle. This means that I’m not just treating the problem at hand; I’m actively preventing future infestations, which is something every responsible pet owner seeks. The dual-action ingredients, fipronil and (S)-methoprene, work together to ensure comprehensive protection, making it a trusted choice among pet owners for over 20 years.
Another aspect that I find particularly appealing is the ease of application. With just one monthly dose, I can provide my dog with 30 days of protection. This convenience is a game-changer for busy pet owners like me who want to ensure their dogs remain safe without the hassle of frequent treatments. Plus, it’s suitable for puppies as young as eight weeks old, which means I can start protecting my new furry family members right away.
FRONTLINE Plus is also versatile, with formulations available for cats and kittens, allowing me to protect all pets in my household from fleas and ticks. This is an essential feature because it helps to ensure that my home remains pest-free. By treating all of my pets monthly, I can effectively control the flea and tick populations and prevent any new infestations from taking hold. It’s a small commitment that yields significant benefits for my pets’ health and comfort.
Lastly, I appreciate the option to subscribe and save, making it easier to stay stocked up on FRONTLINE Plus year-round. This means I won’t have to worry about running out of treatments when I need them most. It’s a simple yet effective way to ensure that my dogs are consistently protected, allowing me to focus on enjoying time with them without the worry of fleas or ticks.
Feature Description Fast-Acting Kills fleas, ticks, and their eggs and larvae quickly. Waterproof Remains effective even after bathing or exposure to water. Long-Lasting Protection Provides 30 days of protection with a single monthly dose. Age Suitability Safe for puppies as young as 8 weeks old, weighing over 5 lbs. Household Use Available for both dogs and cats, ensuring protection for all pets. Subscription Option Allows for convenient reordering to ensure year-round protection.
if you’re looking for a reliable, effective, and easy-to-use flea and tick treatment for your large dog, I highly recommend considering FRONTLINE Plus. Its proven track record, combined with the convenience it offers, makes it a wise investment for any pet owner. By choosing FRONTLINE Plus, you are not only protecting your pet but also enhancing their quality of life. Don’t hesitate—give your beloved dog the protection they deserve today!
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Why Understanding Frontline Plus Expiration Date By Lot Number Matters to Me
As a pet owner, ensuring the health and safety of my furry friends is my top priority. I’ve always relied on Frontline Plus to protect my pets from fleas and ticks, but I learned the hard way that using expired products can compromise their effectiveness. By checking the expiration date associated with the lot number on the packaging, I can confidently ensure I’m using a product that will work as intended. This simple step helps me avoid potential health risks for my pets and gives me peace of mind.
Moreover, knowing how to interpret the expiration date by lot number allows me to make informed decisions when purchasing Frontline Plus. I often find myself at pet stores or online shopping, and I want to make sure that I’m getting a fresh supply. If I see a product with a lot number that indicates it’s close to expiration, I can choose to pass on it and look for a fresher batch. This proactive approach saves me from the hassle of dealing with ineffective treatments and ensures that my pets receive the best care possible.
Lastly, being aware of the expiration date helps me manage my inventory better. I can keep track of when I bought each product and use them in the order
Buying Guide: Frontline Plus Expiration Date By Lot Number
Understanding Frontline Plus
When I first discovered Frontline Plus as a flea and tick treatment for my pets, I was relieved to find a product that is both effective and easy to use. However, one thing I quickly learned is the importance of checking the expiration date, especially in relation to the lot number.
Why Expiration Dates Matter
Expiration dates are crucial for ensuring that any medication or treatment, including Frontline Plus, remains effective. I always check this date because using an expired product might not provide the protection my pets need. It’s essential to have confidence in the product’s efficacy.
Finding the Expiration Date
To locate the expiration date on Frontline Plus packaging, I look for the lot number, which is usually printed on the back or bottom of the box. The expiration date is often printed near the lot number, and it’s formatted as a month and year.
Decoding the Lot Number
The lot number is a unique identifier for each batch of Frontline Plus. I’ve found that understanding this can be helpful when I have questions about a specific product. If I notice a discrepancy in the lot number or expiration date, I can contact customer service for more information.
Checking Online Resources
Whenever I purchase Frontline Plus, I make it a habit to check online for any recalls or updates related to the lot number. Many manufacturers provide useful information on their websites, allowing me to stay informed about the product’s safety and efficacy.
Storing Frontline Plus Properly
I’ve learned that proper storage of Frontline Plus can also affect its shelf life. I keep the product in a cool, dry place, away from direct sunlight. This helps ensure that it remains effective until the expiration date.
In my experience, being diligent about checking the expiration date and understanding the lot number has made a significant difference in my pet care routine. I always make sure to use Frontline Plus products that are within their expiration dates for the best results.
Author Profile

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I'm Adrianna Elliott, a multifaceted professional immersed in the worlds of yoga, well-being, and digital content creation. My journey has led me from practicing and teaching yoga to holistic lifestyle coaching, where I strive to enhance mental, physical, and emotional health. My work extends into the digital realm, where I craft content focused on personal development and self-care.
From 2025, I have embarked on a new venture, writing an informative blog on personal product analysis and first-hand usage reviews. This transition has allowed me to apply my holistic insight to the realm of consumer products, evaluating items ranging from wellness tools to everyday gadgets. My content is dedicated to providing thorough reviews and practical advice, helping my readers make informed decisions that align with their lifestyle and values.
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