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Member Exclusive! Earn up to 5X points on qualifying purchases & services. Ends 11.1.25.
Summary
Pro Brow Definer 1MM-Tip Brow Pencil by MAC, a pin-thin 24HR brow definer that delivers natural high definition, hair-like strokes with a water- and smudge-proof formula for 24 hour wear. Our finest brow definer featuring 14 shades with true colour payoff that serve up fuller-looking brows all day.
Benefits
- Long-wearing, 24 hours
- Waterproof
- Smudge-proof, color-true and non-fading, 24 hours
- Transfer-resistant
- Dual-ended 1mm precision tip and spoolie
- 14 true-to-you shades
Key Ingredients
- Unique blend of carnauba wax, castor, argan & coconut oils: Help pigments glide on to resist tugging and breakage
Item 2623824
Apply the eyebrow pencil using small, quick strokes in the direction of natural hair growth to fill in and shape for a naturally defined look.
The 1mm precision tip mimics the look of natural hair.
Blend pigment with the spoolie end for a seamless diffused finish.
Hydrogenated Soybean Oil, Hydrogenated Coco-Glycerides, Zinc Stearate, Hydrogenated Vegetable Oil, Rhus Verniciflua Peel Wax, Copernicia Cerifera (Carnauba) Wax\ Copernicia Cerifera Cera \Cire De Carnauba, Caprylic/Capric Glycerides, Argania Spinosa Kernel Oil, Cocos Nucifera (Coconut) Oil, Hydrogenated Castor Oil, Tocopherol, [+/- Titanium Dioxide (CI 77891), Iron Oxides (CI 77491), Iron Oxides (CI 77492), Iron Oxides (CI 77499), Blue 1 Lake (CI 42090), Yellow 5 Lake (CI 19140)]
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Reviews
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Most Helpful Positive Review
MAC Pro Brow Definer
The MAC Pro Brow Definer is a game-changer for achieving perfectly sculpted brows. Its precise tip allows for effortless application, helping to define and shape brows with ease. Compared to other brow products I've tried, the MAC Pro Brow Definer stands out for its precise application and long-las...
Most Helpful Critical Review
Bring Back the Old One
I don't know why Mac decided to change this product?!?! This was my go to product for my eyebrows. I would draw in my eyebrows everyday using this pencil, or use it here and there when needed. It was a PERFECT pencil. I have blonde hair, shave my face, including my eyebrows. I do have my eyebro...
1125 results
Give us more for our money
Reviewed at
Comments about STUD
I have been using MAC products for over 10 years and I have been using the brow pencil for that long (stud) so I know what exactly I am talking about. You changed the brow pencil recently and this new one breaks easily and finishes within just a few uses. This is giving SCAM for the price we are paying. The brow pencil is non long lasting. No longer worth the money like before. GIVE US MORE FOR THE PRICE.
I would not buy this product again. My rating would be zero.
I purchased the Pro-Brow definer on 10/16/25 and there is basically no product left. The few times I have used it, the pencil breaks when I touch it to my brows. I have previously used the Anastasia brow definer for many years and Chanel before that and never had this problem.
Terrible Product
Reviewed at
Comments about SPIKED
I've used this product for years in the shade Spiked and always loved it — but since they changed the formula, it's terrible. It breaks constantly, even when I roll out just a small amount. What a waste of money! Unfortunately, I didn't realize how bad it was until it was too late to request a refund. Very disappointed and won't be purchasing again.
Zero star
Reviewed at
Comments about ONYX
This used to be my absolute favorite pencil. Now they make it thin and fine and with less amount so it basically runs out in a week. FOR $24. Mac has really lost it. This is robbery. How do you charge so much for a pencil that now last a week. you drastically reduce size from 0.03 ounces to 0.01. Crazy!! Then they came out with MAC Shape + Shade Brow Tint, which was great, now they discontinued this too. Will definitely loose long term customer. Now im in between different brand trying to find the right color do my eyebrows. Definitely not good business decision on Mac part as plenty of customers are complaining.
Mac eyebrow pencil
Verified Reviewer
Reviewed at
Comments about ONYX
Pencil broke off with every stroke. I remember when these pencils would last. Now, almost $ 30 down the drain