Revolutionize Your Beauty Routine

Step beyond the ordinary and immerse yourself in the art of transformation with our pioneering cosmetics line. Elevate your self-expression through our cutting-edge products meticulously crafted to defy conventional beauty standards.

Featured Products

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Featured Products *

SeneGence 3 in 1 Cleanser Normal to Dry
NZ$68.00

Luxurious, creamy cleanser that cleanses, tones, and exfoliates while hydrating your skin. It thoroughly yet gently washes away impurities and makeup to leave skin soft and smooth.

SeneGence LashSense® VolumeIntense® Mascara
NZ$52.00

Works to separate, lift, coat and curl each lash to volumized perfection. The humidity-resistant formula fully extends lashes for 3-D intensity and dramatic volume. Contains beneficial ingredients to help moisturize, prevent brittleness, and strengthen lashes. Buildable, smooth application.

SeneGence NeoTight® Rejuvenating Anti-Wrinkle Serum
NZ$158.00

This high-performance serum made with peptides dramatically reduces the appearance of fine lines and stubborn wrinkles for a smoother looking complexion.

SeneGence Glowify® Long-Lasting Eyeshadow Stick
NZ$48.00

Experience the magic of a mistake-proof glow with our revolutionary Glowify Stick. This twist-up wonder is designed to deliver a long-lasting pop of radiance, ensuring you effortlessly shine with a smooth and velvety soft-focus highlight. Get ready to be dazzled by a gorgeous wash of color that enhances your natural beauty!

My Brand Vision

At ByTreacy, my vision is to help women feel confident, comfortable, and happy in their own skin — no pressure, no perfection, just real results.

I believe beauty should feel simple and empowering, not complicated or intimidating. With high-quality SeneGence skincare and makeup, I’m here to help you build a routine that works for your lifestyle — whether you’ve got five minutes or fifty. 💄

ByTreacy is all about keeping it real. Honest advice, genuine connection, and products that truly deliver. No fluff, no overwhelm — just support, guidance, and a space where you can learn, grow, and feel good about yourself.

Because confidence isn’t about changing who you are.
It’s about feeling like yourself again — just a little more radiant. ✨

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Ready to push boundaries with us? Share your details and let’s forge something extraordinary together. We’re excited to explore new horizons together!