Laura Mercier's Flawless Fusion Ultra Longwear Foundation has generated considerable buzz, promising a flawless, long-lasting finish. This in-depth review explores whether the hype is justified, examining its performance across several key areas. We delve into the foundation's texture, application, coverage, and longevity, paying particular attention to its behavior under challenging conditions, including extreme heat. The review considers its suitability for various skin types, especially focusing on the experience of someone with dry, sensitive skin.This comprehensive analysis evaluates the foundation's claim of 15-hour wear, its oil-free, transfer-resistant formula, and its advertised matte finish. We assess the packaging, price point, and overall value proposition, weighing its performance against its cost relative to other high-end and drugstore alternatives. Ultimately, this review aims to provide readers with a clear understanding of Laura Mercier's Flawless Fusion Ultra Longwear Foundation's strengths and weaknesses, helping them determine if it's the right investment for their makeup routine.
Pros And Cons
- 15-hour longwear
- oil-free
- transfer-resistant
- matte finish
- weightless
- medium to full coverage (buildable)
- suitable for all skin types
- comfortable to wear
- lightweight
- nice canvas for other makeup
- doesn't emphasize fine lines under eyes
- even wear throughout the day
- doesn't feel dry or cakey
- no fragrance
- Emphasizes deeper expression lines
- Coverage described as medium, not full even when built
- Wears off around the nose after extended wear
Read more: Hydrating Foundation for Dry Skin: Top 5 Picks
Product Overview and Claims
Laura Mercier's Flawless Fusion Ultra Longwear Foundation promises 15-hour wear, an oil-free, transfer-resistant formula, and a matte finish. It's available in 20 shades and boasts buildable, medium to full coverage, suitable for all skin types.

The foundation comes in a sleek, frosted glass bottle with a convenient pump dispenser. The packaging is aesthetically pleasing, featuring a subtle zebra-print pattern on the cap. The price point is $48 for 1 fluid ounce.

Application and Initial Impressions
The foundation has a liquidy but not runny consistency, described as lotion-like. Application with both a brush and a beauty blender yielded similar results, with no significant difference in sheerness.

Initially, the coverage appeared light to medium with one layer, easily buildable as advertised. The finish is indeed matte, feeling weightless and comfortable on the skin, despite the reviewer's typically dry, sensitive skin.
Midday Check-in (5.5 hours wear)
After approximately 5.5 hours of wear in 110°F weather, the foundation held up remarkably well. While some natural glow appeared due to the extreme heat, the makeup remained largely intact and even.
There was minimal creasing or caking. The reviewer noted that the matte finish had mostly persisted, except in areas prone to sweating, like the nose. Reapplication of lipstick was deemed necessary.
Final Check-in (9.25 hours wear) & Overall Thoughts
After over 9 hours, the foundation showed minimal wear, primarily around the nose area where it faded evenly, rather than cracking or creasing. The reviewer emphasized its impressive longevity and comfortable wear throughout the day.

Despite being a matte foundation, it didn't dry out or feel cakey on the reviewer's dry skin. It also didn't emphasize fine lines or wrinkles, particularly under the eyes, which was a significant positive. The buildable coverage offered medium coverage, potentially reaching full with additional layers.
Conclusion: Is it Worth It?
Overall, the Laura Mercier Flawless Fusion Longwear Foundation exceeded expectations, especially considering the reviewer's dry skin type. The long-lasting wear, comfortable feel, and non-caking matte finish make it a strong contender in the high-end foundation market.
While the price point ($48) is higher than drugstore options, the quality, performance, and impressive wear time justify the cost for those seeking a luxurious, reliable foundation that performs well in various conditions. The extensive shade range is also a plus. Highly recommended!