Diablo Cosmetics Reviews 

1,667
•
TrustScore 4.5 out of 5

4.3

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Review summary

Created with AI, based on recent reviews

Looking at 216 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the fantastic eyelash serum, noting that the formula is very gentle on sensitive eyes while consistently delivering noticeable length, growth, and thickness. Consumers also note the smooth application process and the exceptionally helpful support team that promptly resolves any unexpected issues. Some reviewers were not happy with delivery delays, mentioning that orders occasionally took too long to arrive, lacked confirmation emails, or tracking information was entirely missing. A few people also felt that certain product tubes felt unusually empty or ran out much faster than expected.

What people talk about most

Quality

Reviewers highlight positive aspects of quality, expressing immense satisfaction with how the gentle serum... See more

Order

People report ambiguous experiences with order, noting that while many consumers enjoy speedy shipping and... See more

Customer service

Users describe positive interactions with customer service, frequently highlighting prompt replacements and... See more

Reviews shaping this summary

Rated 4 out of 5 stars

I've tried several eyelash growth serums over the years. Not one of them made any difference and some of them really stung. However, this is the second Diablo serum I've ordered. It seems to help. My... See more

Company replied

Rated 5 out of 5 stars

A most responsive company. Great product. Order acknowledged immediately. Delivery prompt. Customer service 5 star. I have just ordered my third eye lash serum. Used regularly it is super. My las... See more

Rated 5 out of 5 stars

Ok where to begin. Having reached an age where I noticed my once good lashes have become short and sparse. Having tried that one extortionately priced serum, it wasn't one that I could afford either.... See more

Rated 5 out of 5 stars

There's a pretty intense learning curve to do this right but once you figure it out, the stuff really works!! I use it to laminate my brows as well as perm my lashes. The adhesive causes an allergic r... See more


Company details

  1. Cosmetics Store

Written by the company

Diablo Cosmetics is your destination for simple at-home beauty products.


Contact info

4.3

Excellent

TrustScore 4.5 out of 5

2K reviews

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No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

Replied to 100% of negative reviews

Typically takes over 1 month to reply

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4.3

All reviews

(1,667)

216 reviews in the last 12 months

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Rated 5 out of 5 stars

A non delivery request was made by…

A non delivery request was made by myself & I was astounded by the speedy response from Imran @Diablo. I received parcel the next day.
I have not used the product Lashlift yet.
But when I do I will be sure to update my review.
Thank you Imran for the 30% off next order. Yet another reason to shop from Diablo. 👍🏼

April 26, 2026
Unprompted review
Rated 5 out of 5 stars

Diablo has Great Products AND Great Customer Service!

Diablo has not only a great product for those of us who have sensitive eyes and can't use other lash serums without negative side effects like blurred vision, but they also have great customer service! One of my deliveries never arrived, and they have worked with me to find a solution. You can tell A LOT about a small business about the level of how they treat their customers. Highly recommend you give them a shot if you have had problems with other lash serums.

April 24, 2026
Unprompted review
Rated 5 out of 5 stars

High-performing , budget-friendly serum

I’ve been using this eye serum for about two months and the results are clear: my lashes are noticeably longer and fuller. I’ve tried competitors like GrandeLash and Babe Lash in the past; while this works just as effectively, it is much gentler on my eyes. Finding a high-performing formula that is also budget-friendly makes this a total win.

April 20, 2026
Unprompted review
Rated 1 out of 5 stars

Like most of the people leaving reviews…

Like most of the people leaving reviews on here, I ordered this eyelash serum because I’d seen good reviews on various platforms & because I have sensitive eyes thought it would be the best one to use. Well I’ve been using for almost a month now & haven’t noticed any difference at all! Very disappointing.

January 21, 2026
Unprompted review
Diablo Cosmetics logo

Reply from Diablo Cosmetics

Thanks for taking the time to review the serum, Tanya, and we’re sorry it hasn’t worked out so far. We’d really like to understand what went wrong and help you get a better result. If you email info@diablocosmetics.com with your order number, we’ll take a look and sort out a solution for you.

Kind regards,
Diablo Cosmetics Support

Rated 5 out of 5 stars

Great Customer Service

This is a very gentle product. I did not have any irritation like I have experienced with another eye lash serum. If it doesn't work for you they have the best customer service that answers promptly.

April 9, 2026
Unprompted review
Rated 5 out of 5 stars

Brilliant product

Brilliant product, I use the lash serum morning and night and have noticed a huge difference in the strength and growth of them I previously used uk lash but prefer this brand much more. I have lash lifted my lashes twice with the lash lift kit highly recommend after the first use you do get used to the steps and doing it too, it gives you the lash lift and it lasts too as I was skeptical doing my own LVL but wouldn’t need to pay to go anywhere for it doing now, you get about 6-8 weeks lift too. It’s a Must buy

April 4, 2026
Unprompted review
Rated 1 out of 5 stars

Scam business

Scam business. Took my money, never sent the product, and ignored me when I tried to escalate

March 31, 2026
Unprompted review
Diablo Cosmetics logo

Reply from Diablo Cosmetics

Thank you for taking the time to share your feedback Christine. We're very sorry to hear about your experience and understand how frustrating this must have been.

We would like the opportunity to investigate what happened with your order and any previous communication. Please email info@diablocosmetics.com with your order number or the email address used to place the order, and we'll review your case as a priority to work towards a resolution.

Kind regards,
Diablo Cosmetics Support

Rated 4 out of 5 stars

Great customer service

4 stars for customer service. All communication has been pretty speedy. Cost for the lash serum is good. 2.5 stars for the effectiveness of the lash serum. Didn’t do much for me. However as an older woman, the reason my lashes are sparse and don’t respond well to growth serums is very different from a 35 year old. (Different issues when you get older.) I missed my return window by 10 days (I thought it was 90 days, it’s 60 days) but they refunded half the cost to me as a courtesy. Again 4 stars for customer service.

March 30, 2026
Unprompted review
Rated 1 out of 5 stars

I was really hopeful…

I was really hopeful with all the positive reviews but... I've used the lash serum for 3 months now and no change at all.
Very disappointing.

March 30, 2026
Unprompted review
Diablo Cosmetics logo

Reply from Diablo Cosmetics

Thank you for taking the time to share your feedback Alida. We're very sorry to hear that our Eyelash Serum did not deliver the results you were hoping for, despite using it consistently for three months.

We understand how disappointing this must be. While many of our customers experience visible improvements, individual results can vary depending on factors such as natural lash growth cycles, genetics, age, and other individual characteristics.

We'd appreciate the opportunity to learn more about your experience and see if there's anything we can do to help. Please email info@diablocosmetics.com with your order details so that we may review your case further.

Kind regards,
Diablo Cosmetics Support

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