MAC Cosmetics Eye Brows Big Boost Fiber Gel eyebrow gel shade Spiked 4,1 g
Achieve instantly fuller, thicker, and fluffier brows with MAC's 24-hour Fibre Gel. The Tri-Fibre Technology builds, defines, and shapes for a voluminous boost that remains smudge-proof, waterproof, and perfectly in place all day and night. Full description
| shop | availability | shipping | price | ||
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tip
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MAC Cosmetics Eye Brows Big Boost Fiber Gel eyebrow gel shade Spiked 4,1 g
notino.co.uk
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in stock | unknown | £19.21 | Go to e-shop |
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MAC Eye Brows Big Boost Exclusive Fibre Gel 4.1g (Various Shades) - Spiked
lookfantastic.com
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in stock | from £3.95 | £24 | Go to e-shop |
| Název produktu | neznámá | neznámá | 8 9000 Kč | Go to e-shop |
Achieve instantly fuller, thicker, and fluffier brows with MAC's 24-hour Fibre Gel. The Tri-Fibre Technology builds, defines, and shapes for a voluminous boost that remains smudge-proof, waterproof, and perfectly in place all day and night.
Instant Brow Volume
Experience the power of Tri-Fibre Technology, using small synthetic microfibres to build and define every brow hair. 95% of users reported instantly fuller-looking brows, giving you a naturally thick and fluffy finish in one swipe.
24-Hour Resistance
Designed for all-day confidence, this advanced gel formula provides an impressive 24 hours of long-wearing hold. The waterproof and sweat-proof composition ensures your colour and volume are locked in, no matter the conditions.
Flawless Colour Lock
The 'Spiked' deep brunette shade deposits rich, subtle pigment that won't flake, smudge, or fade throughout the day. Maintain a perfectly defined brow without the need for touch-ups, keeping your look flawless from morning to night.
Expertly Untamed Look
The buildable gel allows you to effortlessly transform your brows, whether you desire a perfectly polished finish or a bold, expertly untamed effect. 96% of users reported instantly transformed brows with an application that felt effortless.
Others' Experiences in a Nutshell
Summarized from our reviews using AI
Provides excellent, long-lasting hold and definition; the fibre-infused formula is buildable for a thicker, natural brow look, significantly cutting down application time.
Has a very low ingredient cleanliness score (18/100 according to some sources), making it unsuitable for 'clean beauty' enthusiasts.
Ideal for: Quick, effective daily brow routines and users who need strong, all-day hold and definition.
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Unverified User 30.12.2025"This gel is an absolute game-changer for my morning routine; I used to spend ages with a pencil, but now my brows are flawless and defined in seconds. The hold is incredible and truly lasts all day without feeling crunchy, and the Spiked shade is a perfect deep brown for my dark hair."
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Unverified User 29.12.2025"The colour pay-off and natural thickening effect from the fibres are fantastic, but I was really disappointed to see its low ingredient cleanliness rating. While it holds my brows perfectly, I'm actively looking for a cleaner alternative that performs just as well because I want to be more mindful of what I'm using daily."
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Unverified User 24.12.2025"I love how buildable this product is; I can go from a subtle, natural look to a much thicker, bolder brow without it looking clumpy or unnatural. It dries down quickly but not so fast that you can't sculpt and shape your brows just the way you want them before it sets."
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Unverified User 13.01.2026"I have sparse areas and the little fibres in this gel genuinely make my brows look fuller and more voluminous than any other gel I've tried. It stays put all day long without budging, even through a sweaty gym session, and it surprisingly cleans off easily at night."
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Unverified User 13.01.2026"The Spiked shade is great for adding definition to my dark brows, but you have to be careful not to over-apply or you can end up with a slightly heavy look. A little goes a long way, especially if you have finer hairs, so I use a separate brush to wipe off excess before application."
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Unverified User 18.11.2025"It's a really high-performing product that gives a nice sculpted finish and great colour consistency, but the strong holding formula feels a bit too 'stiff' once it's completely dry. I wish it had a little more flexibility to allow for a softer, fluffier texture throughout the day."