Kérastase, a luxury haircare leader, is known for personalized care and premium salon-quality results; they’ve made strides in sustainability through refillables and eco-conscious formulas.

L'OCCITANE is a globally recognized beauty brand known for its Provence-inspired, luxurious skincare and body care, praised for its natural ingredients, appealing fragrances, and effectiveness on dry/sensitive skin. The brand strongly emphasizes sustainable sourcing and aligns with the B Corp movement, demonstrating a commitment to positively impacting people and the planet through fair trade partnerships and reducing environmental impact, including beauty packaging waste.

L'Oréal, a global beauty conglomerate, offers a vast portfolio across various beauty segments, emphasizing innovation, safety, and "Beauty for All." While not a universally "clean beauty" brand, L'Oréal has significant sustainability initiatives, aiming to reduce environmental impact and improve formulas. Consumer sentiments vary across their many sub-brands, but they are widely recognized for accessibility and research.

LOLI (Living Organic Loving Ingredients) is a unique, zero-waste, and "upcycled" clean beauty brand offering pure, food-grade ingredients for DIY skincare. Committed to extreme transparency and sustainability through compostable packaging, they appeal to ethical, personalized beauty seekers. LOLI Beauty closed down in late 2024 after failing to secure new ownership or capital following a failed joint venture.

La Mer is a highly regarded, albeit expensive, luxury beauty brand, best known for its transformative Crème de la Mer. Celebrated for its signature "Miracle Broth" and luxurious experience, La Mer effectively hydrates and restores dry, sensitive skin, making it a worthwhile investment for many.

La Prairie is an ultra-luxury Swiss skincare brand, renowned for its innovative anti-aging products and sophisticated formulations. Their unique offerings often feature rare and precious ingredients like caviar, platinum, and gold, alongside their proprietary "Exclusive Cellular Complex" designed to combat signs of aging. Consumer sentiment among its affluent clientele is consistently positive, praising the luxurious experience and efficacy of their high-performance products. La Prairie is owned by Beiersdorf.

Lancer Skincare, created by Beverly Hills dermatologist Dr. Harold Lancer, offers clinical-grade, anti-aging products built around the three-step Lancer Method. Notable products include the Polish exfoliator and the Advanced Retinol Treatment. While not officially clean-certified, Lancer emphasizes dermatological efficacy and luxury. Consumers trust its medical backing and dramatic results, though its sustainability practices remain limited.

Lancôme is a luxury French brand offering sophisticated, scientifically-backed skincare, makeup, and fragrances. Though not "clean" or cruelty-free, they're increasingly focused on sustainability via biodiversity protection, refillable packaging, and "green sciences." Consumers view them as effective and classic, with growing efforts in inclusivity and beauty tech.

Laneige is a prominent K-beauty brand specializing in "Water Science" and "Sleep Care," offering intensely hydrating and barrier-boosting products like its popular Lip Sleeping Mask. While not strictly a "clean beauty" brand, it focuses on safe and effective formulas, complemented by a clear "Reduce, Reuse, Recycle" sustainability initiative. The brand consistently earns extremely positive consumer sentiment for its visible results of dewy, plump, and hydrated skin.

Laura Geller Beauty is an American heritage brand renowned for its "baked" makeup formulas, designed to be easy to apply and flattering, particularly for mature skin, like the Baked Balance-n-Brighten Foundation. While not a strict "clean beauty" brand, consumers value its ease of use and flattering results.

Laura Mercier is a prestige brand known for its "Flawless Face" philosophy and iconic Translucent Loose Setting Powder and Tinted Moisturizer. While introducing "Clean Beauty" formulas in some newer products, they are not universally clean-certified. They are cruelty-free where legally required, and sustainability efforts focus on ingredient alternatives and waste reduction under Shiseido. Consumers value the brand's luxurious feel and ability to create a polished, natural look.

Lawless Beauty is a clean makeup brand founded by Annie Lawless. Known for bold pigments and full-coverage products like the Forget The Filler Lip Plumping Gloss and The One Talc-Free Eyeshadow Palette, the brand is clean, and cruelty-free. Lawless bridges the gap between clean beauty and glam, making it a favorite among ingredient-conscious makeup lovers who don’t want to sacrifice payoff.

Le Labo is a niche fragrance house celebrated for its artisanal, freshly blended perfumes and personalized in-store experience. They emphasize craftsmanship and are moving towards more sustainable practices. Consumers highly regard their distinctive, long-lasting scents.

Lily Lolo is a British mineral cosmetics brand known for its clean formulations and skin-friendly ingredients. Offering a full range of natural makeup—from the Mineral Foundation to Big Lash Mascara—Lily Lolo is cruelty-free, vegan-friendly, and free from synthetic dyes, parabens, and fragrances. It's widely loved for delivering gentle yet effective coverage, especially for sensitive skin types.

Lime Crime is an American cosmetics brand known for its bold, colorful makeup and hair dyes, championing self-expression. They are 100% certified vegan and cruelty-free, appealing to consumers seeking unique, animal-friendly, and highly pigmented products for artistic makeup.

Lipstick Queen is a playful lipstick-focused brand founded by Poppy King, known for transforming lip shades like Frog Prince (a green bullet that It is admired for its unique storytelling, innovative color changes, and lipstick-first philosophy. The brand is cult-favorite among those who love fun, expressive lip color with a twist. The Lipstick Queen brand was discontinued after being acquired by Forma Brands, the parent company of Morphe, in late 2020.

Lisa Eldridge Beauty is an artist-founded makeup brand by celebrity makeup artist Lisa Eldridge. Her signature True Velvet Lipsticks and Seamless Skin Foundation are known for their rich pigments, velvety textures, and elegant design. It’s celebrated for quality, performance, and artistry-driven formulations rooted in decades of makeup expertise.

Living Proof is a science-backed haircare brand developed by biotech scientists and hairstylists. Famous for its Perfect Hair Day Dry Shampoo and No Frizz line, the brand uses patented ingredients like OFPMA to target specific hair concerns. It’s cruelty-free and free of sulfates, silicones, and parabens. Living Proof has a reputation for innovation, with consistent praise for delivering visible results across hair types.

Lorac is a professional makeup artist brand known for high-pigment, performance-driven cosmetics, formulated with gentle ingredients. Their "PRO" palettes and skin-friendly complexion products are unique offerings. While free from parabens, mineral oil, and fragrance, they are not typically marketed as a verified "clean beauty" brand. Consumers generally praise their blendability, intense color payoff, and suitability for sensitive skin.

Lovecraft Beauty is a lesser-known indie makeup brand with a gothic-glam aesthetic, often seen in beauty subscription boxes. Known for richly pigmented bronzers, blushes, and lipsticks, the brand focuses bold yet wearable colors. Though niche, it appeals to fans of alternative, fantasy-inspired beauty looks.

Lunar Beauty is the cosmetics brand by beauty influencer Manny MUA, celebrated for its dramatic color stories and celestial-themed packaging. Standouts include the Eternal Eclipse Palette and Moon Prism Blush. The brand is cruelty-free and often vegan, with a focus on inclusive and creative makeup. Loved for its artistry, Lunar Beauty merges influencer accessibility with pro-level payoff.

Lush is a pioneer in sustainable and ethical beauty, known for its handmade bath bombs, naked packaging, and activism around animal rights and environmental causes. While not a traditional clean beauty brand, Lush avoids synthetic preservatives where possible and offers many vegan products. Its cult classics include the Sleepy Body Lotion and the Mask of Magnaminty. The brand enjoys a devoted following and is seen as a leader in eco-conscious retail, though some consumers find its bold scents polarizing.

Luxie Beauty is known for its quality, cruelty-free, and vegan makeup brushes and beauty tools. Founded with a focus on ethical beauty, Luxie offers soft synthetic bristles and sustainable components, including recycled materials and rose gold ferrules. Popular products include the Rose Gold Brush Collection and various complexion tool sets designed for both pros and everyday users. The brand is well-regarded for its durability, performance, and commitment to conscious beauty practices, making it a favorite among clean beauty enthusiasts and makeup artists alike.

LYS Beauty (Love Yourself) is a Black-owned clean beauty brand, known for its inclusive shade range and skin-first formulas. Hero products like the Triple Fix Serum Foundation and No Limits Cream Bronzer are vegan and cruelty-free. With chic triangle packaging and an empowerment message, LYS is celebrated for making clean, quality beauty accessible and inclusive.

M.A.D Skincare generally focuses on innovative, results-driven formulations with high concentrations of active ingredients to target specific skin concerns. While explicit "clean beauty" certifications and sustainability details are less prominent, the brand is valued for its professional-grade efficacy in addressing challenging skin conditions.