ReGen & Recover
Recovery isn’t just about muscles.
from verified reviewsA DAILY LIQUID STACK — built for ACTIVE ADULTS who want to keep training, playing and doing what they love.
ONE SACHET - No Powders. No Pills. No Mixing - READY TO DRINK.
- 8,000mg Marine Collagen
- Glucosamine + Chondroitin
- Curcumin + Black Pepper
- Vitamins C + D
Informed Sport Certified — tested for substances prohibited in sport
Ingredients & allergens
Ingredients: Water, Hydrolysed FISH Collagen, Humectant (Glycerine), Glucosamine Sulphate (CRUSTACEAN), Mango Juice Concentrate, Natural Flavours, Acidity Regulator (Citric Acid), Chondroitin Sulphate, Curcumin Powder, Vitamin C (Sodium Ascorbate), Stabiliser (Xanthan Gum), Preservative (Potassium Sorbate), Sweetener (Steviol Glycosides), Black Pepper Extract, Vitamin D3 (Cholecalciferol).
Allergy advice: contains fish (pangasius collagen) and crustaceans (glucosamine). Not suitable if you have a fish or shellfish allergy.
Nutritional information
How to take
Training days: tear open and drink one sachet 30–40 minutes before your workout.
Rest days: take one sachet with breakfast.
Delivery & subscriptions
Subscriptions ship free and you can pause, adjust or cancel your delivery schedule at any time.
The 4 Week subscription renews every 4 weeks. The 12 Week + 2 Free subscription renews every 14 weeks.
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Your body shouldn't be the reason You Stop.
For people who aren't ready to stop.
Recovery, the complete way.
You train. You eat plenty of protein. But recovery takes longer than it used to — and you’re not imagining it.
Most people focus almost entirely on their muscles. But every sprint, tackle and long run also loads your joints, tendons and connective tissue — and they need support too.
That’s why we created OOST: one ready-to-drink sachet that replaces the 3–4 supplements most active adults juggle, so you can keep training, playing and doing what you love.
Built for more than muscle
Everything an active body needs, in one sachet a day.
Your connective tissue matters too
8,000mg of marine collagen alongside glucosamine and chondroitin — for the joints, tendons and ligaments that take the load every time you train.
Vitamin C contributes to normal collagen formation for the normal function of bones and cartilage.
One sachet. The full stack.
Stop juggling 3–4 tubs and pill bottles. Collagen, glucosamine, chondroitin, curcumin and vitamins C & D in a single ready-to-drink serving.
Tested for sport
Informed Sport Certified, so athletes competing under anti-doping rules can take it with confidence.
Tear, drink, go
Mango & peach flavour. No chalky powder, no shaker, no handful of pills. Fits in a kit bag, a pocket or a glovebox.
Vitamin D contributes to the maintenance of normal bones and normal muscle function.OOST vs the usual options
Most active adults piece their recovery together from several products. Here’s how one sachet compares.
Swipe to compare →
| OOST | Collagen powder | Joint tablets | Buying it all separately | |
|---|---|---|---|---|
| Marine collagen8,000mg per OOST sachet | ✓ | ✓ | Rarely | ✓ |
| Glucosamine + chondroitin | ✓ | ✕ | ✓ | ✓ |
| Curcumin + black pepper | ✓ | ✕ | Some | ✓ |
| Vitamin CContributes to normal collagen formation | ✓ | Some | Some | ✓ |
| Vitamin D | ✓ | ✕ | Some | ✓ |
| Format | Ready-to-drink sachet | Powder to mix | Tablets / capsules | Tubs, tablets & capsules |
| Daily routine | Tear & drink | Scoop, mix, shake | Swallow tablets | All of the above |
| Products needed for this full stack | 1 | 3–4 | 2–3 | 3–4 |
| Fits in a pocket or kit bag | ✓ | ✕ | ✓ | ✕ |
| Informed Sport CertifiedTested for substances prohibited in sport | ✓ | Varies | Varies | Varies by product |
Compared with typical products in each category. Individual products vary, so always check the label.
Get the full stack in one sachetEverything in one sachet. From €1.84 a day.
Subscribe and save €5 on every delivery, with free shipping. Pause, adjust or cancel any time.
Start my subscription · €60What’s inside
Five ingredients, one ready-to-drink sachet. Mango & peach flavour.
Marine collagen
8,000mg per sachet. Hydrolysed collagen from fish (pangasius), in a ready-to-drink liquid.
Glucosamine + chondroitin
Two compounds found naturally in cartilage and connective tissue, together in the same sachet.
Curcumin + black pepper
Curcumin from turmeric, paired with black pepper extract.
Vitamin C
Contributes to normal collagen formation for the normal function of bones and cartilage.
Authorised claimVitamin D
Contributes to the maintenance of normal bones and normal muscle function.
Authorised claimContains fish and crustaceans. Not suitable if you have a fish or shellfish allergy. Full ingredients and nutritional information are in the buy box above. Informed Sport Certified.
One habit. Every day.
Tear
Grab one sachet. No mixing, no measuring, no shaker to wash.
30–40 mins before training
On training days, take OOST 30–40 minutes before your session.
Rest days: with breakfast
Keep it consistent. On rest days, take your sachet with breakfast.
FAQs
What is OOST ReGen & Recover?
A daily liquid supplement for active adults: 8,000mg marine collagen, glucosamine, chondroitin, curcumin with black pepper, and vitamins C & D in one ready-to-drink mango & peach sachet. It’s Informed Sport Certified.
When should I take it?
On training days, drink one sachet 30–40 minutes before your workout. On rest days, take it with breakfast.
I compete in tested sport — is OOST safe to take?
OOST is Informed Sport Certified, meaning it is tested for substances prohibited in sport.
How is this different from a collagen powder?
No scooping, mixing or chalky texture — and instead of collagen alone, you get the full stack in one sachet, replacing the 3–4 separate supplements many active people take.
Which supply should I choose?
New to OOST? The 2 Week Supply is an easy way to try it. Most customers choose the 4 Week Supply, and the 12 Week Supply gives you 2 extra weeks free at the lowest price per day.
Can I pause or cancel my subscription?
Yes. You can pause, adjust or cancel your delivery schedule at any time.
Is it suitable if I have allergies?
OOST contains fish collagen (from pangasius) and glucosamine made from crustaceans. We recommend you don’t take it if you have a fish or shellfish allergy.
How soon will I notice a difference?
Connective tissue adapts over weeks, not days, so consistency matters. Take OOST every day and give it a full training block of around 12 weeks before judging it.
What does it taste like?
Mango & peach. It’s a ready-to-drink liquid, so there’s no chalky powder to mix.
Is it suitable for vegetarians or vegans?
No. OOST contains marine collagen from fish (pangasius) and glucosamine from crustaceans.
Is OOST only for athletes?
No. It’s built for anyone who wants to keep training, playing and doing what they love, from weekend walkers to elite athletes. If you compete in tested sport, it’s also Informed Sport Certified.
Do I save by subscribing?
Yes. Subscriptions save €5 on every delivery and ship free. You can pause, adjust or cancel at any time. Delivery on one-time purchases is calculated at checkout.
Keep doing what you love.
One sachet a day, free shipping on every subscription, and you can pause, adjust or cancel any time.
Start my subscription · €60Take It Further.
OOST was started by college friends Andrew Felton and Wendel Armstrong — one from a sports nutrition background, the other a top-level hockey player in Ireland.
Recovery was easy when we were younger. We couldn’t find a solution that kept it that way, so we built one — for everyone from weekend walkers to elite athletes.