Daily muscle health without the bloat
Essential amino acid blend with vitamin D3 that activates muscle comparable to 20g of protein, for only 5 calories.
Available in 10,000+ retail stores
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These little packets
mean I don't have
to measure a thing. -
This is so light and
refreshing, without
that chalky texture. -
I just mix one stick
in water. It doesn't
sit heavy afterward. -
It tastes amazing,
and I don't get that
heavy shake feeling. -
I picked Citrus Blast
to help support my
muscle health.† -
I love that I can
just grab a packet
and take it with me. -
It tastes like juice,
and I can pop a stick
in my purse and go. -
I see this as a habit
for my muscles
as I get older.† -
It tastes like fruit
punch, without
that chalky texture. -
My citrus drink is
light and refreshing,
without the bloat. -
I like having this
with dinner, without
that bloated feeling. -
It mixes so well. I
love the taste and
how light it feels. -
I'm shocked how
good this tastes.
It's not thick at all. -
It's as simple as
pour, stir and sip,
without the sugar. -
I love a plant-based
drink that tastes
this delicious. -
This tastes so good,
without that weird
whey protein taste. -
With amino acids, I
can skip the protein
breakdown step.† -
It's an easy way to
get aminos without
that heavy feeling. -
It's light, refreshing
and tastes like a
burst of raspberry. -
I can keep these
sticks in my bag for
a refreshing drink. -
I can mix this right in
a water bottle, and
it's just five calories. -
It tastes like juice,
with only five
calories a serving. -
I just stir it, drink
it and head out for
my morning walk. -
I love the raspberry,
and it's only five
calories a stick. -
I love this after a
workout. The citrus
tastes amazing. -
It tastes like juice,
without that thick,
chalky texture. -
I keep using these
sticks. They're easy
to take on the go. -
It tastes like orange
juice and doesn't
make me bloat.
You already know protein matters. That was never the problem.
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Blender, shaker bottle, washing up. By the time I've made it I've talked myself out of it.
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If it tastes good it's 200 calories. If it's not, I can't get it down.
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Whey and my stomach are not friends.
People don't quit protein because they stopped believing in it. They quit because the shake beat them.
One stick. None of the shake.
Activates muscle comparable to 20g of protein per serving†
From a precise serving of free-form essential amino acids. Studied head to head against 20g of whey protein.‡
5 calories, not 120
Sugar-free, fat-free. Your muscles get the signal. Your calorie budget barely notices.
Supports GLP-1 & bariatric†
When you're eating less, protein is the hardest number to hit. This is muscle support that doesn't need an appetite.
Absorbs in 5 to 15 minutes
Whey takes 2 to 3 hours to digest. Free-form amino acids skip digestion. No bloat, no heaviness, nothing sitting in your stomach.
1,000 IU vegan vitamin D3
125% of the daily value in every stick, from lichen, to support bone health.
Plant-based. Dairy-free. Gluten-free. Sugar-free.
Nothing whey does to a stomach. Light as water, tastes like fruit.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Simple muscle nutrition
Protein has to become amino acids first.
Your body breaks protein down into amino acids before using them for muscle support. Rejuvenate starts with free-form essential amino acids, plus vitamin D3. A light, refreshing alternative to whey protein.
Helps build muscle†
Essential amino acids for your daily muscle habit.
Helps improve strength†
Muscle support that fits everyday life.
Bloat-free
A light drink, without a thick shake.
Plant-based
Vegan formula, including vitamin D3 from lichen.
- GLP-1 support†
- Bariatric friendly†
- Sugar-free
- Aspartame-free
- Gluten-free
- Fat-free
- Dairy-free
Free-form essential amino acids
Start with the building blocks.
Amino acids are the building blocks your muscles use to build and repair muscle protein. Rejuvenate supplies them in free form, so there is no intact protein to break down first. Absorbed in 5 to 15 minutes.
1,000 IU vegan vitamin D3
Muscle support. Bone support. Every stick.†
Vitamin D3 supports muscle function and helps your body absorb calcium for bone health.† Every stick includes 1,000 IU from lichen, 125% of the daily value.
Why combine amino acids and vitamin D3?
They play complementary roles: amino acids provide building blocks for muscle protein, while vitamin D supports normal muscle function. Researchers also study how activated vitamin D interacts with the pathways that respond to leucine.
In a 13-week study of 380 adults aged 65 and older with low muscle mass and mobility limitations, a drink combining whey protein, leucine, vitamin D and other nutrients improved appendicular muscle mass and chair-stand time versus control. It did not improve the primary handgrip or overall physical-performance outcomes relative to control. This was a different formula, and the study did not isolate vitamin D or test Rejuvenate.
A 2026 study in 17 healthy young adults found an earlier first-hour muscle-protein synthesis response after vitamin D supplementation, exercise and whey, but no greater overall four-hour response. These findings explain why both nutrients matter; they do not establish a multiplied benefit from this product.
Sources: NIH vitamin D facts; Bauer et al., 2015; Revuelta Iniesta et al., 2026.
Clinically proven ingredients. Third-party tested.
Your muscles constantly build and break down protein. Building is called muscle protein synthesis, or MPS. Breaking down is called muscle protein breakdown, or MPB. Keeping muscle means building more than you break down.
Rejuvenate is formulated to activate muscle comparable to 20g of protein per serving.†‡ After amino acids, MPS rises for a few hours, then settles back to its resting level. Two sticks a day, hours apart, give your muscles two separate chances to respond.§
† See the disclaimer in the footer. ‡ Bukhari et al., Am J Physiol Endocrinol Metab, 2015. § Mitchell et al., Clin Sci, 2017. Mamerow et al., J Nutr, 2014. Arentson-Lantz et al., J Appl Physiol, 2020. Børsheim et al., Clin Nutr, 2008. ¶ USDA WWEIA usual-intake data; 2025 to 2030 Dietary Guidelines.
Superior to whey protein†
The comparison printed on our packaging.
| Feature | Rejuvenate | Whey protein |
|---|---|---|
| Activates muscle comparable to | 20g protein† | 20g protein |
| Calories per serving | 5 calories | 120 calories |
| Absorbs within | 5 to 15 minutes | 2 to 3 hours |
| Bloat-free digestion | Yes | No |
| Light and refreshing | Yes | No |
Packaging comparison uses the generic whey reference printed on the approved carton. It is not a named-brand shake comparison. † See the disclaimer in the footer.
Muscle support without the shake.
Activates muscle comparable to 20g of protein per serving.† Free-form amino acids plus vegan vitamin D3, in a light, refreshing drink.
Prices compare our 12-week subscription with one-time retail shakes.
Swipe to compare
| Feature | Rejuvenate | Leading protein shake #1Leading protein shake | Leading protein shake #2 | Leading protein shake #3 |
|---|---|---|---|---|
| Dairy-free | Yes | No | No | No |
| Vegan formula | Yes | No | No | No |
| Bloat-free | Yes | Not stated | Not stated | Not stated |
| Absorbs within | 5–15 minutes | Not stated | Not stated | Not stated |
| Calories per serving | 5 | 150 | 160 | 170 |
| Sugar per serving | 0g | 1g | 1g | 5g |
| Vitamin D per serving | 25 mcg | 11 mcg | 6 mcg | 5 mcg |
| Price per serving (USD) | $1.07 | $2.55 | $2.40 | $3.33 to $4.59 |
Sources and price details
US prices checked November 7, 2026. Rejuvenate: $179.95 for 168 servings with the 12-week subscription, rounded to $1.07 per serving. Other purchase options cost more per serving. Shake prices are one-time retail prices, excluding tax and shipping, with no subscription discounts. Prices and availability vary.
Leading protein shake #1 (shown on phones) is Ensure Max Protein, #2 is Premier Protein and #3 is Fairlife Core Power.
Ensure Max Protein Milk Chocolate: 4 x 11 fl oz for $10.19, $2.55 per bottle. Manufacturer facts, retail pack. Premier Protein Chocolate: 4 x 11 fl oz for $9.59, $2.40 per bottle. Manufacturer facts, retail pack. Fairlife Core Power Chocolate, 26g: $4.59 for one 14 fl oz bottle, or $3.33 per bottle with the visible 3-for-$10 offer. Manufacturer facts, retail bottle.
Nutrient and ingredient facts are from the manufacturer labels for the named chocolate shakes. Not stated means no comparable absorption time or bloat-free claim was provided on the manufacturer pages reviewed. Rejuvenate's absorption, bloat-free and muscle-activation statements are from its product packaging. † See the disclaimer in the footer.
What people actually say.
My brother likes that Rejuvenate is light enough to drink after training without feeling like he had another meal.
No bloated feeling for me after this, which is a big reason I reach for it instead of a thick shake.
I can use this after a hard session and still feel ready to eat an actual meal later.
grape does not taste like cough syrup. low bar maybe, but important
Mango pineapple is the flavor I pack for beach volleyball because it tastes really good ice cold.
This mixes clean enough that the last sip is not a mouthful of powder. That matters to me.
I am on the road a lot and I have zero interest in carrying tubs through airports. These packets solve that.
My brother is picky about supplement drinks and even he said the grape was smoother than expected.
The last sip tastes normal. That sounds stupid until you've used powders where the bottom is basically sludge.
Grape is weirdly underrated. I thought it would be the one flavor I gave away.
Citrus has been perfect after playing outside with my kids because I can make it while they are still running around.
Citrus in a tall glass with ice is probably the cleanest tasting version for me.
I appreciate not having loose powder anywhere near my laptop. The stick packs solve a very specific problem for me.
My mom has been taking a packet with her when she goes for a long walk, mostly because it is easy to throw in her bag.
I keep raspberry in my work tote for days I walk home instead of taking transit.
Our promise
Feel it, or get your money back.
- No questions asked
- Full refund
- Pause or cancel anytime
FAQs
Is this protein?
No. Protein is a delivery truck for amino acids, and your gut spends two to three hours unloading it. Rejuvenate is the cargo, already unloaded: free-form essential amino acids that activate muscle comparable to 20g of protein per serving within minutes, for 5 calories.†
How many servings should I take per day?
Two a day, a few hours apart. The muscle-building response rises for a few hours after amino acids, then settles back to its resting level, so a morning stick and an afternoon stick are two separate chances to activate it. Every supply is sized for that: 14 servings a box, a week per box.
When should I take Rejuvenate?
Whenever it fits your day. Most people have one mid-morning and one mid-afternoon, between meals. If you are active, one of them works well after a walk or a workout. Tear a stick into 10 to 12 fl oz of water, stir, and it is done.
I'm on a GLP-1. Is this for me?
Yes. When you're eating a fraction of what you used to, protein is the first thing that slips, and many people on GLP-1 medications are advised to prioritize protein. A stick in ten ounces of water fits the smallest appetite: 5 calories, sugar-free, no dairy, nothing to feel full on. Supports GLP-1 & bariatric.†
Will it upset my stomach?
Rejuvenate is dairy-free, gluten-free and sugar-free, with no whey and no fillers. Free-form aminos skip the long digestion step, so it feels light, more like fruit-flavored water than a shake.
How does the subscription work?
Choose 12 boxes in one delivery, renewing every 12 weeks, or 4 boxes renewing every 4 weeks. The price and currency for your selected supply are shown before purchase and at checkout. We email you before every renewal. Skip, pause, change flavors or cancel from your account at any time; there is no minimum number of orders.
What if it's not for me?
The 12-Week Supply carries a 90-day money-back guarantee. Every other purchase carries 30 days. If you are not satisfied, tell us and we refund you in full. No questions asked, nothing to send back.
Where do you ship?
We ship from the US to most countries, with tracking on every order. The 4-Week and 12-Week Supplies ship free everywhere we deliver. A single box ships for $5 in the US; outside the US, shipping for a single box is calculated at checkout.
The questions people actually ask.
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