I’ve been using the Tru Marine Collagen for a few years due to its purity and quality. I also use the ReHydrate, living in South Florida it’s a must. Great products, great customer service.
Great product! Taste great and dissolves easily into your water. Great for a hot day, during or after a workout or just as a refreshing drink! Love the lemon on his own but also love to mix it with the tropical.
My first time trying this and love it! Gives me a pick-me-up boost of energy and tastes delicious. I take this almost daily and will be sure to always have it stocked up.
By far best taste !! Love it
I’ve been using the marine collagen and rehydrate for over a year. I love these products and always keep extra in the house because my boys also love the rehydrate. Headed on a holiday soon and will be packing rehydrate sticks for sure.
My husband and I use ReHydrate on the daily. I started using it when I was feeling like I hadn't been drinking enough water or for travel days while on vacation. Now, it has just become routine and it really makes a difference in how I feel. I must say, it is also the BEST remedy when you aren't feeling all that great after a night of bevies! We buy the tubs for at home and the packets are so handy for travel. I love both flavours, my husband loves the lemon.
Testimonials
WHAT PEOPLE ARE SAYING ABOUT ReHydrate™ + Collagen

Amy Beeman
I love a scoop of the ReHydrate and Collagen in a glass of water after my workouts. It’s great for rehydration and I’m in love with the new Tropical flavour! I’ll even put in a glass of hot water before bed (it’s better than tea!).
Bradley Smith
I regularly use the ReHydrate before or after workouts and soccer matches. Not only has it helped me recover, it’s all-but-eliminated the cramps I used to suffer from afterwards. I regularly restock on withinUs products to make sure I don’t run out!
Jessica
I can’t live without the Rehydrate.. as someone who has issues with getting enough water each day, and was dealing with brittle nails and hair from a hormonal disease, I was trying multiple products to combat those. I now keep a jar of Rehydrate on my desk at work, and at home, and feeling so much better, plus get so many comments I am looking younger and my hair is so healthy and shiny. This is now a life staple! Would love to try more products to incorporate into my daily routine!
FAQ
HAVE A QUESTION?
Glucose is the main fuel source for the body and needs to be replenished after dehydration in order to help the body restore balance and recover. The 1g of organic cane sugar per serving included in ReHydrate + TruMarine® Collagen serves a functional role enabling the electrolytes to be absorbed into your body quickly and efficiently.
No. Drinking water alone when you are already dehydrated will actually cause a further dilution of electrolytes in your body, and potentially a complete depletion of electrolytes.
Consuming electrolytes prevents dehydration, not only because of the water it provides but also because the electrolytes stimulate your body to hold onto water. When you are exercising, or outside on a hot day, getting enough fluid is vital for keeping your body temperature down, and if you are an athlete, being hydrated is essential for optimal performance.
No, they are the same. The withinUs™ ReHydrate formulation has remained the same since it launched in 2017. Recently, we have added ‘sport’ to the label to highlight the benefits that it can provide after activity/exercise. This product is like no other on the market and offers a variety of benefits including maximizing hydration, accelerating post-workout recovery, and reducing joint pain.
withinUs ReHydrate + Collagen has been formulated with organic, non-gmo ingredients and the best absorbed electrolyte minerals sodium, potassium, calcium, magnesium and chloride. Our current recommended daily serving is based on adult consumption (up to 4x per day). The amount of sugar is far less than conventional sports/electrolyte drinks on the market. Children are not advised to consume the product in the same quantities as adults but can absolutely find benefit in our ReHydrate + Collagen. 1 scoop of ReHydrate should suffice, however, please consult your healthcare practitioner prior to use if there are any medical concerns.
Our withinUs product line and withinUs TruMarine™ Collagen are safe, natural products. As we do not know the health history of our customers (and mothers-to-be, or new mothers), we always advise you to check with your health provider if you have any concerns.
Many withinUs customers continue using our TruMarine® Collagen throughout their pregnancy/postpartum health and have found that it helps minimize their pregnancy mask/ melasma, and helps to firm and hydrate their skin. After pregnancy many women also find that their hair or nails become thin and brittle. withinUs TruMarine® Collagen helps replenish and restore collagen within the body and helps hair grow thicker, and nails to become healthier and stronger.
Taking withinUs TruMarine™ Collagen during pregnancy (or postpartum) is a personal choice. We have attached a link to a blog article written by Registered Dietitian Kim McDevitt about her decision to continue with TruMarine™ Collagen during her pregnancies and postpartum care:
https://withinus.ca/blogs/livetru/taking-collagen-throughout-my-pregnancy-kim-mcdevitt-rhn
withinUs ReHydrate™ + Collagen is a premium electrolyte drink mix, available in two organic flavours - Lemon & Tropical. Our electrolyte minerals are carefully selected to ensure superior quality and absorption. We pride ourselves on sourcing high quality, real ingredients that will help you reach your best performance. As a non-GMO product, take withinUs ReHydrate™ + Collagen to fuel an intense workout, help alleviate jet-lag, recover after sweating or illness, as these can call lead to electrolyte imbalance.

Sweat. Rehydrate. Repeat.
Add 1 scoop of withinUs ReHydrate™ + Collagen to your water during or after exercise, while travelling, or after being in the heat/sun to hydrate your body completely. The addition of withinUs TruMarine™ Collagen helps accelerate post workout recovery, aid lean muscle gain, and helps reduce joint pain.
REPLENISH AFTER EXERCISE
Formulated Like Our Bodies
withinUs ReHydrate™ + Collagen is a premium electrolyte blend formulated using organic and non-GMO ingredients.
The formulation was created keeping in mind the mineral make up of the human body.

RECOVER LOST MINERALS
Electrolytes + Collagen

Sodium
Helps regulate water in the body. It also plays an important role in maintaining the healthy function of muscles and nerves, and helps control blood pressure levels.

Potassium
Is important for regular digestive and muscular functioning in the body, and is vital for healthy heart function. Potassium enables cells to absorb more water, therefore keeping the body hydrated.

Magnesium
Is essential for healthy immune system functioning. Magnesium also helps the heart beat rhythmically by allowing it to relax between beats, and helps increase bone strength.

Calcium
Is responsible for many functions such as nerve transmission, muscle growth, and contractions and ensuring regular heartbeat. Calcium deficiency can result in the body, taking calcium from the bones, resulting in weakened bones and muscle cramps.

Chloride
Works with Potassium and Sodium to help balance acids in the body. Chloride aids the movement of fluid in and out of cells, and helps muscles contract effectively, keeps tendons and joints healthy.

withinUs TruMarine™ Collagen
Collagen is one of the most important structural components in our body, representing 1/15th of our total body weight. This fibre-shaped protein plays an extremely important role in ensuring the cohesion, elasticity and regeneration of skin, bones, tendons, ligaments and skeletal muscles.

