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hand-picked by Makeup Artist

Introducing SOSU Cosmetics The Perfect Red Lip Duo

SOSU Perfect Red Lip Duo - Beauty and the Boutique - The perfect duo for stunning red lips
SOSU Perfect Red Lip Duo Key Benefits - Red lip duo for stunning lips, long-lasting perfection, stylish matte finish
SOSU Perfect Red Lip Duo on different skin tones
SOSU Perfect Red Lip Duo contains lip liner in shade 'Siren' and lipstick in shade 'Te Amo'
SOSU Perfect Red Lip Duo on porcelain skin
SOSU Perfect Red Lip Duo on fair skin
SOSU Perfect Red Lip Duo on medium skin
SOSU Perfect Red Lip Duo on dark skin
SOSU Perfect Red Lip Duo on deep skin
SOSU Perfect Red Lip Duo Key Ingredients - safflower, jojoba & castor seed oils, vitamin e, dimethicone, candelilla wax
Results to expect - instant show-stopping red duo, definition & long-lasting hue, stylish non-drying matte, hydrating ingredients, chic & versatile
SOSU Perfect Red Lip Duo - Hand-picked by Katie for being the perfect stylish red duo with a matte yet comfortable formula!
Beauty and the Boutique - Shipping worldwide, never tested on animals, makeup artist approved, free how-to guide, charities and perks
Beauty and the Boutique - Rated Excellent on Trustpilot
Scroll down to discover more SOSU Perfect Red Lip Duo tips
SOSU Perfect Red Lip Duo
SOSU Perfect Red Lip Duo - Beauty and the Boutique - The perfect duo for stunning red lips
SOSU Perfect Red Lip Duo Key Benefits - Red lip duo for stunning lips, long-lasting perfection, stylish matte finish
SOSU Perfect Red Lip Duo on different skin tones
SOSU Perfect Red Lip Duo contains lip liner in shade 'Siren' and lipstick in shade 'Te Amo'
SOSU Perfect Red Lip Duo on porcelain skin
SOSU Perfect Red Lip Duo on fair skin
SOSU Perfect Red Lip Duo on medium skin
SOSU Perfect Red Lip Duo on dark skin
SOSU Perfect Red Lip Duo on deep skin
SOSU Perfect Red Lip Duo Key Ingredients - safflower, jojoba & castor seed oils, vitamin e, dimethicone, candelilla wax
Results to expect - instant show-stopping red duo, definition & long-lasting hue, stylish non-drying matte, hydrating ingredients, chic & versatile
SOSU Perfect Red Lip Duo - Hand-picked by Katie for being the perfect stylish red duo with a matte yet comfortable formula!
Beauty and the Boutique - Shipping worldwide, never tested on animals, makeup artist approved, free how-to guide, charities and perks
Beauty and the Boutique - Rated Excellent on Trustpilot
Scroll down to discover more SOSU Perfect Red Lip Duo tips
SOSU Perfect Red Lip Duo

Introducing SOSU Cosmetics The Perfect Red Lip Duo

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worldwide shipping

Shipping worldwide today!

Never tested on animals

none of the products are ever tested on animals

Your purchase helps us fund small charities making a big difference

Your purchase helps us fund small charities making a big difference

A tree is planted in your honour every time you shop with us

A tree is planted in your honour every time you shop with us

Every product is hand-picked by Makeup Artist & Founder Katie

Every product is hand-picked by Makeup Artist & Founder Katie

Every item comes with a how-to guide so you can get the best results from home!

Every item comes with a how-to guide so you can get the best results from home!

Why you'll love it

Picked by Katie

by Makeup Artist

Stop scrolling - your perfect red lips are just a swipe away. 

Smooth, bold, and undeniably flattering, this duo gives you an instant pop of colour with precision that lasts all day. 

Ready to make your lips the centre of attention? It’s time to turn up the drama with:

SOSU Perfect Red Lip Duo

Meet the ultimate combination for instant, show-stopping red lips! 

The SOSU Longwear Lip Liner in ‘Siren’ pairs perfectly with the Matte Lipstick in ‘Te Amo’, giving you the confidence of defined, flawless red lips that turn heads wherever you go. 

  • Longwear Lip Liner in ‘Siren’ – warm, scarlet red shade
  • Matte Lipstick in ‘Te Amo’ – classic, vibrant red that makes you look like a classic Hollywood starlet!

This complimentary duo is the easiest way to elevate your look - no fuss, no compromise, just classic red perfection!

What makes this lip duo so unique?

This isn’t your average lipstick set. The twist-up longwear liner defines and locks in colour with flawless precision, preventing feathering, while the matte lipstick delivers rich, velvety pigment for lips that turn heads.

Unlike ordinary lip products, this duo stays put all day without drying out your lips. 

Instant glamour and undeniable drama? Absolutely.

Longwear Lip Liner in ‘Siren’

‘Siren’ by SOSU is the ultimate red lip essential – bold, precise, and effortlessly glamorous! This twist-up lip liner delivers a warm scarlet red that defines and enhances your lips in seconds, giving you show-stopping colour with every swipe. Its creamy, blendable formula glides on smoothly for perfect edges. Candelilla Wax locks in moisture and creates a silky, protective barrier, while Vitamin E nourishes and protects lips from dryness and environmental stress.

Matte Lipstick in ‘Te Amo’

Plunge into instant glamour with SOSU’s Matte Lipstick in ‘Te Amo’ – a vibrant, bold red with velvety matte perfection. This statement-making shade is rich, buildable, and designed to turn heads while staying comfortable on your lips all day. Infused with Castor Seed Oil, Jojoba Oil, and Safflower Seed Oil, it keeps lips hydrated, soft, and kissably smooth while delivering a smooth, fuss-free application. 

And that’s not all…

The duo comes in sleek, travel-friendly packaging with no pencil sharpener required - making it effortless to pop into your handbag for touch-ups on the go. Each formula is designed to feel lightweight, glide effortlessly, and keep your lips hydrated - so your stunning red never skips a beat.

Are you ready to level up your lips with SOSU The Perfect Red Lip Duo?

Results to expect  - ‘Siren’ Lip Liner
  • Instantly defined, head-turning red lips with precise, flawless edges
  • Rich, bold pigment that locks in colour and elevates your red-lip game
  • Long-lasting formula that stays put all day without smudging or feathering
  • Twist-up, no-sharpen design for effortless, precise application every time
  • Nourishing ingredients like Vitamin E and Candelilla Wax keep lips protected, hydrated, and smooth
  • Perfect partner for ‘Te Amo’ matte lipstick - enhances colour, prevents feathering, and creates a stunning, polished finish
Results to expect - ‘Te Amo’ Matte Lipstick
  • Instantly stunning, show-stopping red lips that turn heads with effortless glamour
  • Rich, bold red with a velvety matte finish for that iconic, statement-making look
  • Long-lasting colour that stays vibrant and flawless all day without drying or cracking
  • Nourishing ingredients like Castor Seed Oil, Jojoba Oil & Safflower Seed Oil keep lips soft, hydrated, and luxuriously smooth
  • Creamy, blendable formula that glides on for precise, fuss-free application every time
  • Versatile red perfection - wear solo for classic elegance or pair with ‘Siren’ lip liner for bold, head-turning definition

SIZES: 

Longwear Lip Liner in ‘Siren’ – 0.1g | 0.003 fl.oz
Matte Lipstick in ‘Te Amo’  – 6ml | 0.21 fl. oz

About the brand: SOSU Cosmetics

SOSU Cosmetics was created by Suzanne Jackson, makeup artist, beauty influencer, and one of Ireland’s most fearless beauty entrepreneurs. Since launching in 2015, SOSU has become a go-to for glam lovers, offering cruelty-free, high-performance makeup, skincare, and tanning essentials. With Suzanne’s passion and expertise at the heart of it all, the brand empowers you to glow harder, slay louder, and own your beauty with confidence.

About Beauty and the Boutique

Beauty and the Boutique is a proudly independent, online-only beauty destination where you’ll only ever find products you can truly trust. Every item is hand-picked by makeup artist Katie Clement-Lorford based purely on performance, quality, and how it makes you feel - never because a brand has paid for it to be featured. There are no sponsored listings, no paid placements - just Katie’s genuine beauty favourites. Every product is selected with care and never tested on animals, so you can trust that what you see is what Katie truly believes in. With thousands of five-star reviews from customers around the world, we’re here to make beauty simple, uplifting, and truly trustworthy.

Why Shop with Beauty and the Boutique?
  • Worldwide Shipping - We deliver to over 100 countries
  • Cruelty-Free Products - Nothing we sell is ever tested on animals
  • Makeup Artist Approved - Every product is tried, tested, and loved by Katie
  • Free How-To Guides - Step-by-step help included with your order
  • You're Giving Back - We plant a tree and support global charities with every purchase
  • 20% Off When You Buy 3 - Use gift code 20 at checkout
  • Rated Excellent on Trustpilot - Trusted by thousands of happy customers
  • Top Quality Store on Google Shopping - Verified and reliable
  • Trusted Worldwide – Customers in over 100 countries shop with us
  • What’s more, you’ll get free beauty, makeup, and skincare advice from Katie. And if you have any questions, our friendly team - expertly trained by Katie herself - will reply within 24 hours.
About Makeup Artist Katie

Katie Clement-Lorford is the founder of Beauty and the Boutique and her own makeup line, Love Katie. With over 25 years’ experience as a professional makeup artist, Katie has worked with real women of all ages, skin tones, and confidence levels — and now brings that expertise directly to you. At Beauty and the Boutique, Katie personally hand-picks and approves every product based on performance, quality, and how it makes you feel. For many consecutive years running, Katie Clement-Lorford has been a UK beauty awards judge. She’s also a passionate advocate for kindness, simplicity, and feel-good beauty that truly works.

 

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Ingredients

The Magic Formula Inside:
  • Rich in Linoleic Acid and Vitamin E, this nourishing oil helps to deeply hydrate and soften lips while supporting the skin’s natural barrier. It promotes smoothness, enhances suppleness, and helps maintain a firm, healthy-looking appearance, leaving lips feeling pampered and resilient.

  • Castor Seed Oil is a deeply nourishing ingredient that provides excellent moisturising benefits for the lips. Rich in fatty acids, it helps to lock in hydration, preventing dryness and flakiness while keeping the lips soft and smooth. Its natural emollient properties create a protective barrier that enhances comfort and suppleness, making it ideal for maintaining healthy-looking lips. Additionally, castor seed oil gives lip products a creamy texture and beautiful shine, ensuring a smooth, even application and a long-lasting, hydrated finish.

  • Treat your lips to the natural goodness of Jojoba Oil. This lightweight, fast-absorbing emollient locks in moisture while soothing and conditioning delicate lip skin. It keeps lips soft, smooth, and comfortable all day, while supporting their natural barrier to prevent chapping, making them feel effortlessly pampered.

  • Vitamin E is a potent antioxidant that shields the lips from environmental stressors and free radical damage. It nourishes and revitalises the delicate lip skin, helping prevent dryness, flaking, and chapping, leaving lips looking and feeling healthy, smooth, and radiant.

  • Dimethicone is a lightweight, skin-conditioning silicone that forms a smooth, protective barrier on the lips, helping to lock in moisture and prevent dryness and chapping. This barrier also shields the skin from environmental irritants such as wind and pollution, keeping the lips soft and comfortable. Plus, the silky texture enhances the glide and wear, allowing for an even, long-lasting application with a smooth, non-sticky finish.

  • Derived from the leaves of the Candelilla plant, this natural wax is a lip-loving powerhouse. It locks in moisture to keep lips soft and supple, provides structure for smooth, effortless application, and creates a protective barrier that feels silky and comfortable all day.

Not Tested On Animals

Paraben Free

Non-Comedogenic

Gluten Free

Nut Free

Vegan

LONGWEAR LIP LINER IN SIREN: DIMETHICONE, TRIMETHYLSILOXYSILICATE, CYCLOPENTASILOXANE, POLYETHYLENE, EUPHORBIA CERIFERA (CANDELILLA) WAX, CYCLOHEXASILOXANE, ISODODECANE, PHENYL TRIMETHICONE, MICROCRYSTALLINE WAX, OZOKERITE, SYNTHETIC FLUORPHLOGOPITE, SILICA, BARIUM SULFATE, PHENOXYETHANOL, TOCOPHERYL ACETATE, CI 16035, CI 15850, CI 77491.

MATTE LIPSTICK IN TE AMO: CETYL ETHYLHEXANOATE, CERA MICROCRISTALLINA, DIMETHICONE, POLYETHYLENE, POLYBUTENE, POLYGLYCERYL-2 TRIISOSTEARATE, DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER,HYDROGENATED POLYISOBUTENE, SILICA , TRIMETHYLOLPROPANE, TRIISOSTEARATE, ALUMINUM HYDROXIDE,DIISOSTEARYL MALATE,ALUMINUM STARCH OCTENYLSUCCINATE,FRAGRANCE,OCTYLDODECANOL,CAPRYLIC/CAPRIC TRIGLYCERIDE,ALUMINUM BENZOATE,PHENOXYETHANOL,BIS-DIGLYCERYL POLYACYLADIPATE-2,ETHYLHEXYL PALMITATE,VINYL DIMETHICONE/METHICONE SILSESQUIOXANE CROSSPOLYMER,CAPRYLYL METHICONE,C26-28 ALKYL DIMETHICONE,TRIETHOXYCAPRYLYLSILANE,TOCOPHERYL ACETATE,POLYHYDROXYSTEARIC ACID,AMINOPROPYL TRIETHOXYSILANE,SIMMONDSIA CHINENSIS (JOJOBA) SEED OIL,SIMMONDSIA CHINENSIS (JOJOBA) SEED EXTRACT,CARTHAMUS TINCTORIUS (SAFFLOWER) SEED OIL,SORBITAN SESQUIOLEATE,1,2-HEXANEDIOL,CAPRYLYL GLYCOL,RICINUS COMMUNIS (CASTOR) SEED OIL,SODIUM HYALURONATE,HYDROGENATED CASTOR OIL ,CI 15850,CI 77891,CI 45410,CI 16035.

Tips for best results

Step
1
SOSU Perfect Red Lip Duo how to use - Step 1

Starting at your Cupid’s bow, line your top & bottom lips with ‘Siren’ Lip Liner

Step
2
SOSU Perfect Red Lip Duo how to use - Step 2

Now, fill in your lips with ‘Te Amo’ Lipstick

Step
3
SOSU Perfect Red Lip Duo how to use - Step 3

Ta-daah! Instantly stunning & stylish red lips!

Customers love it

What they're saying
Loved everything I have purchased
I love your suggestions, and I am in Perth, Western Australia 🇦🇺. I have loved everything I have purchased from you. Genuine and researched for me so I’m all in ❤️

Sarah G-N

They pack the products with so much care and style!
I love these products and tutorials as well. I have never been a fan of heavy make-up so Beauty and the Boutique is perfect for what I need and is also cute how they pack the products with so much care and style and they are so nice to send those candies. Not to mention how much i've learned from Katie's tips 🥰

Mirela D

Always great value
Have purchased from Katie many times. Always great value and works beautifully on my 70-year-old skin!

Janice H

Absolutely awesome!
Amazing result following your videos. You have changed my life thats for sure. As I have got older, I have needed a little help. Not been a grest one for makeup in my younget days, you have taught me so very much, so I can still apply very little, keep that natural look, and look feel so good. Thank you so very much for sharing your wonder ful hints and tips, and products! Thank you!! ❤️

Catherine A

I love these products!
Love the tutorials. Bought a few things now, still practising and buy a few things at a time. No, definitely not a scam, lovely lady, read her story.

Sharan Y

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