FREE Premium Stainless Steel Bottle With "Signature Pack" Purchase

4.8★★★★★ reviews

✓ 90 servings + FREE bottle. 
✓ Only $0.88 per serving.
✓ Source Of Vitamin C. Zero Sugar. 
✓ 30-Day Money-Back Guarantee
✓ One-time purchase. Not subscription

We sourced from HACCP-certified bottle manufacturer

Bottle features
✓ 304 stainless-steel bottle body
✓ Durable and Leak-Proof
✓ BPA-free
✓ 750ml capacity
✓ Reusable, light and easy to carry

✓ Formulated in 🇸🇬

✓ 3rd Party Tested

✓ Vitamin C

✓ SFA-Compliant

✓ 30-Day Money Back Guarantee

Turn Plain Water Into Tasty Lemon Drink

Step 1. Tear open one sachet. 
Step 2. Pour into 400–500ml of water. 
Step 3. Stir for 5 seconds. Done.

30-Day Money Back Guarantee

We're confident you'll love the taste.

But if for any reason you're not satisfied, simply let us know within 30 days of delivery. Just email us at hello@citrusful.com, we’ll guide you through our simple refund process, no questions asked. This is our promise. 

Refund Policy

We selected ingredients carefully to create a refreshing lemon drink with zero sugar and only 2.5 calories per serving.

Lemon Tea:
Citric acid, Natural Lemon Flavour Powder, Sodium Carbonate, Green Tea Extract Powder, Calcium Carbonate, Potassium Carbonate, Sucralose, Ascorbic Acid (Vitamin C), Niacin (Vitamin B3), Pantothenic Acid (Vitamin B5), Vitamin B6, Thiamine (Vitamin B1), Folic Acid (Vitamin B9), Vitamin B12
Lemon Lime:
Citric acid, Natural Lemon Flavour Powder, Natural Lime Flavour Powder, Sodium Carbonate, Calcium Carbonate, Potassium Carbonate, Sucralose, Ascorbic Acid (Vitamin C), Niacin (Vitamin B3), Pantothenic Acid (Vitamin B5), Vitamin B6, Thiamine (Vitamin B1), Folic Acid (Vitamin B9), Vitamin B12

No-Brainer Hydration. No Sugar. Source of Vitamin C.

One serving provides ~21mg of Vitamin C, fulfilling 70% of your daily reference value (30mg) under Singapore Food Regulations.


Daily reference values are based on the First Schedule (Table I) of the Singapore Food Regulations administered by the Singapore Food Agency (SFA).

Third Party Lab Testing. Certified Safety

Independently Tested for Quality & Safety

Every batch is verified by an accredited third-party laboratory for:

✓ Nutritional content
✓ Heavy metals (lead, arsenic, cadmium, mercury)
✓ Microbiological safety (Salmonella & E. coli)
✓ Sugar and calorie content

Manufactured in HACCP and ISO-certified facilities. Formulated and quality-controlled in compliance with Singapore Food Agency (SFA) food safety standards.

Frequently Asked Questions

What does WaterUp taste like?

Refreshing and clean — like fresh-squeezed lemon and lime, without the artificial aftertaste of typical "lemon flavor" drinks. It's lightly sweet, never syrupy.

Think of it as the natural cousin of a sports drink: hydrating, tangy, satisfying, but without the sugar crash or that chalky vitamin powder taste.

We use natural lemon and lime extracts, not just citric acid and flavoring, which is why the taste reads as natural rather than chemical.

Is it natural or artificial?

WaterUp uses natural lemon extract, natural lime extract, natural green tea extract, and added Vitamin C (ascorbic acid). No artificial colors. No artificial flavors. No preservatives.

The product is light yellow naturally — from the citrus extracts themselves, not from coloring agents. That's also why the color may vary slightly between batches, which is normal for natural ingredients.

Is it tested for safety?

Yes. WaterUp is manufactured in a HACCP-certified facility. Each batch is subject to quality control testing and third party lab testing. We can provide a Certificate of Analysis (COA) upon request.

Does it work with cold water or room temperature?

Yes to both. Cold water is our recommendation because it brings out the brightest citrus notes, but room temperature works perfectly.

Does it contain sugar?

Zero sugar. WaterUp contains less than 10kcal per serving with no added sugar, no high-fructose corn syrup, and no maltodextrin. It's Nutri-Grade B certified by Singapore's Health Promotion Board, which means it meets the standard for "lower sugar" beverages.

If you're managing your sugar intake, on a low-carb diet, or just trying to avoid the afternoon crash that comes with sugary drinks, WaterUp fits cleanly into your routine.

What sweeteners do you use?

WaterUP uses sucralose for that clean, sweet taste with zero sugar and zero calories.

How much Vitamin C does it contain?

One sachet provides approximately 70% of your recommended daily Vitamin C intake — sourced from a combination of natural lemon extract and added ascorbic acid (Vitamin C). One serving is enough to noticeably support your daily Vitamin C goals, especially helpful for active people, those frequently in air-conditioning, or anyone wanting daily immunity support.

Can I drink more than one sachet a day?

For most healthy adults, 1-2 sachets per day is the sweet spot. The Vitamin C content of one sachet already covers about 70% of your daily needs, and two sachets approach the upper limit of recommended daily Vitamin C intake. More than two sachets daily isn't harmful for most people but is unnecessary.

When is the best time to drink it?

Three popular moments among our customers:

Morning — start the day hydrated with a Vitamin C boost.
Mid-afternoon (around 3pm) — replace the sugary coffee or bubble tea craving with something equally refreshing but healthier.
After meals — help cleanse the palate and aid digestion, especially after rich or oily food.

There's no wrong time. Many customers keep a few sachets at their work desk, in their gym bag, and in their travel kit.

How long does WaterUp stay fresh once I open the box?

Each sachet is individually sealed and shelf-stable. The box itself has an 24-month shelf life from the date of manufacture (printed on the packaging). Once you open the outer box, the individual sachets remain fresh until their printed expiry date — no need to refrigerate.

How is WaterUp different from a sports drink or electrolyte mix?

Sports drinks are designed for athletes, high in sugar and sodium, calibrated for intense physical exertion.

WaterUp is designed for everyday life: low calorie, zero sugar, mild flavor, and built around taste enjoyment rather than performance.

If you're running a marathon, drink a sports drink. If you're sitting at a desk, walking around, working out moderately, or just want to enjoy drinking more water — that's where WaterUp fits.

This promo bottle is limited, and once it’s gone, future orders may not include the bottle.

✨ Two Refreshing Flavours.
✨ 90 Individually Packed Servings.
✨ One Free Bottle.

Your Signature Mix Pack includes:

✓ 45 Lemon Lime servings
✓ 45 Lemon Tea servings
✓ FREE 750ml stainless-steel bottle
✓ Free Singapore delivery
✓ 30-day taste guarantee

Only $0.88 per serving

Plain Water → Lemon Water

Before
After

Hydration That Works With Your Goals

Zero Sugar. Low Calories. Clean & Light.
Finally, a drink that refreshes without the guilt. No sugar spikes, no empty calories — just clean hydration you can feel good about every single time.

Naturally Good. Zesty.

💪 Rich source of vitamin C and 🌿 Natural lemon extract. Just one serving covers 70% of your daily vitamin C reference quantity.

Plus, a refreshing kick with perfectly balanced sweet and sour flavor, where healthy meets delicious.