GNZ Bioscience |

A new frontier in natural skin health & vitality
from pristine New Zealand.

Immerse yourself in the world of SEWA, where science-based natural ingredients from
beautiful New Zealand are incorporated into exceptional products for you,
your family and your cherished pets.

Welcome to

GNZ Bioscience

With its breathtaking landscapes and rich biodiversity, New Zealand is a haven of unparalleled natural beauty. New Zealand produces some of the best science-backed natural ingredients in the world, including manuka honey, manuka oil, kawakawa, blackcurrant seed oil, grapeseed oil, seaweed extract, green lipped mussel extract and more. Many indigenous plants and bio-extracts have been used by Māori for generations and continue to be used today in a wide range of products that can be found all over the world.

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Discover Our Collections

Sewa Pets

Skin Health & Vitality for pets

VISIT SHOP

SeWa People

Skin Health & Vitality for people

VISIT SHOP

Good health begins with nature

Sewa Pets

Sewa People

Sewa Cat

Cat Boost
Gold Balm
Collagen Boost

Sewa Dog

DOG BOOST
DOG BOOST Powder
GOLD Balm
Collagen Boost

Sewa Pup

Pup Boost

Sewa Family

Wonder Balm
XmaCalm Balm
XmaCalm Baby Balm
Restore Lip Balm
Kesa Hair Serum
Clarity Blemish Balm

Sewa man

Myth Beard Balm
Legend Beard Oil
Revive Moisturiser

Discover
Our Ingredients

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Richard’s Experience With SEWA FAMILY XmaCalm^TMBalm

I have a long history of eczema and I have been looking for a natural balm to give me day long moisture and protection. Now, every 12 hours, I put SEWA FAMILY XmaCalm Balm on my arms and legs and it works wonders. When I have a flare up, I use the product with confidence, knowing it will calm the angry skin. Often, I take ultra-long-haul flights. I put it on my legs under compression stockings and find that my skin is well moisturised even after hours of flying. That’s a huge advantage. It ticks all the boxes in terms of smell and texture, but the way it lasts so long offering moisture is the serious point of difference I have been looking for, for many years. I thoroughly recommend it!

- Richard

Za’s Experience With SEWA DOG GOLD Balm

Za is almost 13 years old. One morning, Za had scraped his nose and it was bleeding. I am not sure how it happened. I had just got the SEWA DOG GOLD Balm, so thought I would give it a try. I hadn't tried anything else on it. I tried your balm because it had already cleared up my other dog’s rash so thought it was worth a try. It healed Za’s wound completely within a day, so it was definitely worth it!

- Joanne (Za’s Mum)

Bubbles’ Experience With SEWA CAT Boost

After reading about SEWA CAT BOOST, I decided to give it a go for my 12 year old cat Bubbles. He was starting to suffer stiffness and a few mobility issues. The first few weeks of using it, I didn't see much difference apart from how nice his coat was. On week 4, I couldn't believe how much his mobility had improved, to the point he is now jumping back on and off the bed. After sitting and laying for a long time, he is not as stiff when he gets up anymore. He is also back to enjoying a game with the string and peg at nights. Thanks to SEWA CAT BOOST, I feel like Bubbles has a few more years left in him.

- Jeanette (Bubbles’ Mum)

Kasper’s Experience With SEWA FAMILY XmaCalm^TM Baby Balm

I love the texture of SEWA FAMILY XmaCalm Baby Balm, the fact that it’s a balm makes this product feel extra nourishing and hydrating, it glides on nicely and absorbs beautifully. Being a balm, you can truly feel and smell the concentration of good ingredients, rather than watered down like a lotion, so you just know it’s working it’s magic. It’s really important to me to use products with no nasties on my baby, so the fact that this is created using 100% natural, top quality ingredients is the biggest drawcard for me. Importantly, I saw a noticeable improvement within a couple of days with the flaky dry skin (cradle cap) on the top of my 4 month old baby's head. I’ll definitely be re-purchasing.

- Hilly (Kasper’s Mum)

Kenai’s Experience With SEWA DOG GOLD Balm

Kenai is a Jack Russel-Bichon. She is five years old. She has suffered from skin allergies ever since I got her. It gets much worse when there are pollens around. Her skin goes red and she licks herself so much until she has no fur on her chest. We have tried heaps of different things and nothing has really worked. So we tried the SEWA DOG GOLD Balm three days ago. Overnight, the redness went away, and her skin now looks amazing! Unlike other products that are sticky on the fur, this balm absorbs very quickly. I am very impressed! I highly recommend it since it has changed Kenai’s life.

- Joanne (Kenai’s Mum)

Alley’ s Experience With SEWA CAT Boost

Alley is a 5 year old tabby. It took Alley a few attempts to eat SEWA CAT BOOST, but once she got the taste of it she was away. She doesn't have any health issues but being on SEWA CAT BOOST has kept her more fuller during the day as she has stopped constantly grazing.

- Kirsty (Alley’s Mum)

Tim’s Experience With SEWA FAMILY Wonder Balm

I was playing with our Lilly puss when I got snagged by a claw on my knuckle. It hurt but I ignored it. After a couple of days, it swelled up and went an angry red. Obviously it was getting infected and really sore, so I decided to give SEWA FAMILY Wonder Balm a crack. The result was nothing short of amazing. The redness and pain was gone in a couple of hours. After a second application in the morning, it was almost completely healed by that evening. In a couple a days there was no sign of the injury. I’m sold. This stuff just works and fast. Great product. Highly recommend.

- Tim

Ducky’s Experience With SEWA DOG GOLD Balm

Ducky is a naughty, playful poodle. She is about three years old. She was playfighting with her brother, Macky and got bitten on the neck during the fight. The wound was nasty and there were clumps of blood on her fur. I put SEWA DOG GOLD Balm on the wound. It healed really well overnight! Ducky’s recovery was remarkable! After 5 days of using SEWA DOG GOLD balm, the wound was all gone! Many people tell me it is a dog wonder balm and it certainly is. I highly recommend SEWA DOG GOLD Balm to all dog parents.

- Leanne (Ducky’s Mum)

Kosmic’s Experience With SEWA CAT Boost

Kosmic is one of my long haired fussy cats. She absolutely loves SEWA CAT BOOST. It has helped in her mobility and stiffness. Even eats it straight off the spoon!

- Janelle (Kosmic’s Mum)

Hunter’s Experience With SEWA FAMILY XmaCalm^TM Balm

Hunter (19) has had skin issues since he was 6 months old. He gets eczema all over his body. He has used steroid creams but it thins his skin. I have tried over 50 products (natural and pharmaceuticals), but nothing has helped consistently. When Hunter put SEWA FAMILY XmaCalm Balm on his skin, it stopped the irritation after about 30 minutes. It smells great, spreads nicely, absorbs well but provides a protective layer on the skin. I am so happy and relieved that it provides comfort, especially when he is away from home. I am pleasantly surprised how effective XmaCalm Balm is!

- Sheree (Hunter’s Mum)

Bruce’s Experience With SEVA DOG Boost

Bruce, our 13-year-old Kelpie, suddenly started showing signs of aging in a very short period of time. She lacked energy and was slow in her movement. Her hearing was also becoming a problem. We were then introduced to SEVA DOG BOOST. The benefits have been quite remarkable in the short time Bruce has been having SEVA DOG BOOST. Bruce has regained her mobility, her eyes are bright, and it appears her hearing has also improved. As we age ourselves, we are keen to know if a human version is being developed.

- Grahame & Maureen (Bruce’s Parents)

Riley and Oscar’s Experience With SEVA DOG Boost

Riley ( 10-year-old terrier) has had many back issues in the past and is a regular at hydrotherapy. Oscar (12-year-old Labrador) is developing a bit of arthritis, with general ageing symptoms beginning to show. I am always looking out for all natural products that can help them. Since they started taking SEVA DOG BOOST, their energy levels have skyrocketed, their coats are shinier, and the joint support has improved their mobility. I'm thrilled SEVA DOG BOOST’s natural ingredients are sourced from New Zealand. My dogs adore the taste. This supplement is fantastic!! We have tried many other natural supplements, such as green lipped mussel extracts and treats, and have had nowhere near the results of SEVA DOG BOOST.

- Cam (Riley & Oscar’s Dad)

Jo’s Experience With SEVA FAMILY XmaCalm^TM Balm

Jo is a busy mum and a student who gets hand eczema. Her hands become red, dry and itchy. It gets worse when over-exposed to water, soap, cleaners and hand sanitiser. Recently, Jo got eczema on her fingers. She tried XmaCalm Balm. She said, “my eczema cleared up within 24 hours, after just two applications. It made a huge difference, like nothing else natural I’ve used. Usually only steroid cream works so fast. The balm smells amazing and it is lovely to use!"

- Jo

Lux’s Experience With SEVA DOG Boost

Lux has always had problems with her back legs. She has hip dysplasia and has also had a cruciate ligament surgery. She would be able to do a short beach walk usually and then be very mobility compromised, almost bed ridden. After a month on SEVA DOG BOOST, not only is her coat extremely shiny, her whole demeanour has changed. She has easily been able to keep up with our homestay and day care dogs, something she never would have been able to do previously. I have not seen her do her two legged hop for a good 2 months. The difference is truly amazing!.

- Joanne (Lux’s Mum)

Za’s Experience With SEVA DOG Boost

Za is almost 13 years old. He has been on SEVA DOG BOOST for over a year now. Za was limping and struggling to get up and down. Sometimes he wouldn’t get up at all. Within about a week of taking the product, Za was able to get up and walk around, even go for 20-30 minute walks. It has made a huge difference! He now uses a wheel chair for longer walks, but he can still get up and down by himself. It has given Za another good year to year and a half of life. I highly recommend this product.

- Joanne (Za’s Mum)

Dawn Nicole’s Experience With SEVA FAMILY Wonder Balm

Dawn Nicole was putting wood in the fire when a sharp wooden splinter lodged in her palm. The splinter wouldn’t budge and it caused throbbing and great discomfort. She applied SEVA FAMILY Wonder Balm on the wound. Dawn says, “when the balm was applied, the relief was almost instant! After just a few days of using it, the wound healed remarkably well and the pain subsided significantly. Wonder Balm truly lives up to its name. I couldn't be happier with the results. It has become a must-have in my household for all those unexpected little mishaps. Thank you for this incredible product!”

- Dawn Nicole

Bear’s Experience With SEVA DOG Boost

Bear is a seven year old Cairn Terrier. We have noticed several positive changes since we started giving him Seva Dog BOOST. He has become so much more playful and agile. He can now run much faster and take long flights of steps without puffing or stopping. His weight has also improved. Bear also had an itchy, smelly and greasy skin condition, especially over the winter months. Even a few days after a bath, Bear’s skin and fur would become greasy. This condition has disappeared completely since he has been on Seva Dog BOOST. It is a special treat he loves. He waits patiently for it every night before going to bed.

- Tim (Bear’s Dad)

Customer Testimonials