Every dose on the label. Every certificate in public.

  • Every active at its full, studied dose
  • A lab certificate for each ingredient
  • The study behind each dose, one tap away
See the certificates

What's inside

Every ingredient.Its research. Its lab test.

17

Ingredients lab tested

249

Lab checks

0

Checks failed

Before launch

Finished drink, NABL lab

Tap an ingredient for its studies and lab test.

Steady energy

Taurine + caffeine (1.4 g + 80 mg)Taurine pairs with caffeine for balanced energy and a quicker, more alert mind. 67%Showed an energy booston performance tests, in a review of 8 trials✓ Lab tested

The studiesDeng et al., 2025

Our guidesTaurine benefitsCaffeine crash

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    Taurine

    99.8% pure Taurine (standard: 99–101%)

    ✓ Heavy metals and harmful microbes within safe limits

  • View PDF ↗

    Caffeine

    Pharmacopoeia (IP) grade caffeine, identity confirmed by lab tests

Caffeine + L-theanine (80 mg + 200 mg)Caffeine wakes you up, L-theanine smooths the edges. Together: calm, sustained alertness. 20%Calmer, sharper focusfewer slip-ups on a focus test✓ Lab tested

The studiesSohail et al., 2021 (Cureus)Einöther et al., 2010Giesbrecht et al., 2010

Our guideL-theanine supplement

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    Caffeine

    Pharmacopoeia (IP) grade caffeine, identity confirmed by lab tests

  • View PDF ↗

    L-theanine

    100.0% pure L-theanine (standard: 98–102%)

    ✓ Heavy metals and harmful microbes within safe limits

Gut health

Probiotic trio · 6 billion CFU total

These spore-forming strains are built to survive stomach acid and reach your gut alive. With probiotics, the count matters, so each strain is dosed at 2 billion CFU.

B. subtilis · B. coagulans · B. clausii (2 bn CFU each)Eases everyday gas, bloating and irregular bowels, and keeps your gut microbiome balanced and your gut lining calm. 63%Reduced gut issuesin a clinical study✓ Lab tested

The studiesGarvey et al., 2022Gupta & Maity, 2021

Our guidesSpore probioticsProbiotics vs prebiotics

47%

Relief from gas and bloating

in 6 weeks

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    B. subtilis

    115 billion live cultures per gram (needs at least 100 billion)

    ✓ Harmful microbes absent

  • View PDF ↗

    B. coagulans

    116 billion live cultures per gram (needs at least 100 billion)

    ✓ Harmful microbes absent

  • View PDF ↗

    B. clausii

    118 billion live cultures per gram (needs at least 100 billion)

    ✓ Harmful microbes absent

Prebiotic

Sunfiber® PHGG (5 g)A gentle prebiotic fibre that feeds your good gut bacteria without the bloat and keeps you regular. 22%More regular bowel movementsin 8 weeks✓ Lab tested

The studiesAbe et al., 2023Polymeros et al., 2014

Our guideFibre supplement with PHGG

20%

Faster digestion

in people with slow digestion

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    Sunfiber® PHGG

    91.2% fibre (needs at least 85%)

    ✓ Heavy metals and harmful microbes within safe limits

Digestive herbs

Saunf · jeera · ajwain · amla (550 mg)Indian kitchen staples for after-meal comfort. ✓ Lab tested

The studiesJohri, 2011Upadya et al., 2019

Our guideGas in stomach

  • Settles the stomach
  • Aids digestion (lab studies)
  • Traditionally used for gas
  • Lowered "bad" LDL cholesterol by 20% in a trial

✓ Lab tested Each herb is tested for strength and safety. Tap a certificate to read it.

Vitamins

Vitamin D3 + K2 (600 IU + 55 mcg)Low vitamin D is common in India and a hidden reason for unexplained tiredness. 600 IU a day helps keep levels in the normal range; with K2 it supports strong bones. 72%Felt less tiredin people low in vitamin D✓ Lab tested

The studiesNowak et al., 2016Kuang et al., 2020

Our guideVitamin D3 and K2

  • K2 helps keep bones strong as you age

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    Vitamin D3

    1,05,010 IU per gram (standard: 90,000–1,10,000)

    ✓ Heavy metals and harmful microbes within safe limits

  • View PDF ↗

    Vitamin K2

    1.04% vitamin K2 (MK-7) (needs at least 1.0%)

    ✓ Heavy metals and harmful microbes within safe limits

Vitamin C (80 mg)Your body can't store vitamin C, so it needs a daily top-up. 80 mg covers the daily need and adds antioxidant protection. 8%Faster immune recovery from coldswith regular vitamin C✓ Lab tested

The studiesHemilä & Chalker, 2013 (Cochrane)Bendich et al., 1986

Our guideVitamin C foods

  • Antioxidant that protects your cells from daily wear and tear

✓ Lab tested Every batch is tested. Tap a certificate to read it.

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    Vitamin C

    96.78% pure vitamin C (needs at least 95.5%)

Vitamin B12 (2.2 mcg)Low B12 is common in India, especially on vegetarian diets. A small daily dose prevents the tiredness, brain fog and tingling that come with running low. Less tiredness, steady energy and healthy nerves.✓ Lab tested

The studiesO'Leary & Samman, 2010

Our guideVitamin B12 deficiency

✓ Lab tested Every batch is tested. Tap a certificate to read it.

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    Vitamin B12

    107% of labelled strength (standard: 100–110%)

    ✓ Harmful microbes absent

Deep sleep

Glycine (3 g)Lowers core body temperature slightly, the signal your brain uses to start deep sleep. 30%Less tired the next morningin a clinical study✓ Lab tested

The studiesBannai et al., 2012Yamadera et al., 2007

Our guideGlycine for sleep

  • Fall asleep faster and reach deep sleep sooner

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    Glycine

    99.4% pure Glycine (standard: 98.5–101.5%)

    ✓ Heavy metals and harmful microbes within safe limits

Recovery

Magnesium bisglycinate (250 mg magnesium)Calms body and mind naturally, and eases tight, tired muscles. 28%Deeper recovery, more restful sleepsupports muscle and nerve relaxation, in 4 weeks✓ Lab tested

The studiesSchuster et al., 2025

Our guideMagnesium glycinate powder

✓ Lab tested Every batch is tested. Tap a certificate to read it.

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    Magnesium bisglycinate

    14.22% magnesium, exactly as specified (standard: 13.9–14.5%)

    ✓ Heavy metals and harmful microbes within safe limits

Stress relief

KSM-66® Ashwagandha (300 mg)An adaptogen that lowers the stress hormone cortisol so mind and body can wind down. 35%More restorative sleepon a sleep-quality scale, in 8 weeks✓ Lab tested

The studiesSalve et al., 2019

Our guideAshwagandha supplement

16%

Lower cortisol (stress hormone)

in 8 weeks

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    KSM-66® Ashwagandha

    5.3% withanolides, ashwagandha's active compounds (needs at least 5%)

    ✓ Heavy metals and harmful microbes within safe limits

L-theanine (200 mg)Quiets the mind without sedating. 26%Fall asleep fasterin 4 weeks✓ Lab tested

The studiesHidese et al., 2019

Our guideL-theanine supplement

14%

Better sleep overall

in 4 weeks

✓ Lab tested Every batch is tested. Tap a certificate to read it.

  • View PDF ↗

    L-theanine

    100.0% pure L-theanine (standard: 98–102%)

    ✓ Heavy metals and harmful microbes within safe limits

Numbers are from the published studies linked on each ingredient. Lab results are from each ingredient batch's certificate.

Full doses.You can see them.

Each layer is one ingredient, drawn to scale by weight. Tap a layer for its dose and its study.

Steady energy

80 mg

Caffeine

Just above the dose the EU panel looked at.

EFSA 2011, 75 mg a serving ↗

  • Steady energy
  • Gut health
  • Vitamins
  • Flavour and the rest

Over 7.3 g of every 8.8 g is actives.

The thinnest layers are drawn a little thicker so you can find them.

The full label, as printed
Ingredients
Sunfiber® (Partially Hydrolyzed Guar Gum), Taurine, Natural flavouring substances (Lemon Orange), Black salt, L-Theanine, Amla Extract, Fennel Extract, Acidity Regulators [Citric Acid (INS 330), Malic Acid (INS 296)], Anti-caking agent [Silicon dioxide (INS 551)], Cumin Extract, Caffeine, Vitamin C (L-ascorbic acid), Ajwain Extract, Steviol glycosides (Natural sweetener, INS 960), Natural Beta Carotene CWD 10% Powder, Bacillus coagulans, Bacillus subtilis, Bacillus clausii, Vitamin D3 (cholecalciferol), Vitamin K2 (Menaquinone), Vitamin B12 (Cyanocobalamin). Contains a natural sweetener.
How to take it
1 stick a day in 200-250 ml of room-temperature or cold water, stirred. Not boiling water: heat breaks down some of the actives.
Serving
8.8 g a stick · 15 sticks · 132 g a box
Free from
added sugar · maltodextrin · gluten

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Deep sleep

3 g

L-glycine

Same dose as the study.

Yamadera 2007, 3 g before bed ↗

  • Deep sleep
  • Recovery
  • Stress relief
  • Flavour and the rest

5.3 g of every 8.6 g is actives.

The thinnest layers are drawn a little thicker so you can find them.

The full label, as printed
Ingredients
L-Glycine, Magnesium Bisglycinate, Natural flavouring substances (Chamomile Lemon), Acidity Regulators [Citric Acid (INS 330), Malic Acid (INS 296)], KSM-66 Ashwagandha® (Root Extract), Cumin powder, L-Theanine, Black salt, Anti-caking agent [Silicon dioxide (INS 551)], Iodized Salt, Steviol glycosides (Natural sweetener, INS 960). Contains a natural sweetener.
How to take it
1 stick a night in 200-250 ml of lukewarm or cold water, stirred. Not boiling water: heat breaks down some of the actives.
Serving
8.6 g a stick · 15 sticks · 129 g a box
Free from
added sugar · maltodextrin · melatonin

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What's not inside

  • Added sugar
  • Sucralose
  • Maltodextrin
  • Melatonin
  • Gluten
  • Proprietary blends

A proprietary blend gives you one total and hides each dose. Our label lists every one.

More of what works.In every serving.

One serving of each. A drink mix has room for full doses. A strip or a gummy runs out of space first.

What are actives? The ingredients you buy it for: glycine for sleep, caffeine for energy, fibre for your gut.

53xthe actives of a typical sleep strip

59x a typical sleep gummy

Filled: activesOutline: the whole serving

  • A typical sleep stripSleep strip 0.10 gof 0.20 g
  • A typical sleep gummySleep gummy 0.09 gof 3.5 g
  • SILT Nights drink mix stick packSILT NightsOne drink mix 5.3 gof 8.6 g
More of what works. SILT Nights
ProductActivesWhole serving
Sleep strip0.10 g0.20 g
Sleep gummy0.09 g3.5 g
SILT Nights5.3 g8.6 g

Strip and gummy figures are from labels of products sold in India. SILT's figure leaves out probiotics, which the pack counts in CFU, not grams.

India, in numbers. Short on sleep, long on stress.

SILT is for healthy adults. It won't treat a deficiency, insomnia or a sleep disorder.

1 in 4

healthy South Delhi adults slept poorly

700 adults, 2026

7 in 10

Hyderabad IT employees slept under 7 hours

345 employees, 2025

6.1 h

average night for Indian university teachers

3,987 teachers, 2026

3x

stress odds for Kerala bank staff on long days

282 employees, 2024

Read it on the pack. Then taste it.

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