Melatonin Tablets

Melatonin is a hormone your body makes in the evening as the light fades. It acts as a timing signal, telling your body that night has begun. Bright light late in the evening can push that signal later, which is one reason winding down without screens helps.

BioPractica Rejuvasleep ForteN, a practitioner-only formula in our range, can help relieve sleeplessness, reduce the time it takes to fall asleep, and relieve disturbed and restless sleep.

Natural sleep support may suit you if:

• it takes you a long time to fall asleep
• you wake during the night and find it hard to settle again
• a busy mind keeps you up at bedtime
• you would like a natural option to try before anything stronger

If poor sleep has gone on for weeks, please see your GP. Ongoing sleeplessness can have causes a supplement will not fix.

Shop by type: Natural Sleep Aids, Magnesium Tablets & Supplements, Natural Sleep Sprays, Oils for Sleep and L-Theanine Supplements.

Prices change, so check the pack. The juice does not state a serve size, so a cost a night cannot be worked out for it. The extract powder works out at about 53 cents a serve.

1. Falling asleep and staying asleep: BioPractica Rejuvasleep ForteN can help relieve sleeplessness, reduce the time it takes to fall asleep, relieve disturbed and restless sleep, and help calm the mind.
2. No prescription needed: nothing in our range needs a prescription, though some products are supplied after a consultation with our practitioners.
3. Choice of format: a night-time drink, a powder, a capsule or a chewable tablet.
4. Value: the tart cherry extract powder works out at about 53 cents a serve.
5. Diet options: the griffonia capsules and one SAMe tablet are labelled vegan.
6. Free advice first: our practitioners can help you work out whether a supplement is right for you before you spend anything.

Always read the label and follow the directions for use. If symptoms persist, talk to your health professional.

A pharmacist can supply two melatonin products without a prescription. Neither is sold in a health food shop.^[1]

• For sleep: modified release tablets of 2 mg or less, for short-term use in adults aged 55 or over, in packs of up to 30.
• For jet lag: immediate release doses of 5 mg or less, for adults 18 and over, in packs of up to 10.

ASK YOUR PHARMACIST ABOUT THIS PRODUCT.

Tart cherry. The trials are mixed. In 20 healthy adults, a week of juice concentrate increased total sleep time.^[2] In 15 older adults with insomnia, only some sleep measures beat placebo, a dummy drink. That trial was publicly funded.^[3] A 2024 trial in 34 adults funded by the Cherry Marketing Institute found no significant effect.^[4] A 2025 review called the evidence limited and mixed.^[5]

5-HTP from griffonia. No double-blind, placebo-controlled trial has tested it for sleep quality in adults with insomnia. In one trial in 30 older adults, scores improved only in the poor sleepers, and there was no placebo group.^[6]

SAMe. A 2024 review pooled mood, behaviour and sleep results together, so it tells you little about sleep on its own.^[7] SAMe is in our range for its other uses, which a practitioner can talk you through.

Magnesium is the most studied. A 2026 review of 12 trials rated the sleep evidence low to very low certainty, with modest benefit possible for some adults. The lead author runs a research company funded by supplement makers.^[8]

Follow the label on the pack you buy, because strengths differ a lot.

• Tart cherry juice is usually a glass in the evening.
• Tart cherry extract powder is 500 mg a serve, stirred into water.
• The griffonia capsules are one a day, and the label says not to exceed one serve daily.
• Sleep+ is a drink you make up at night.
• Homeopathic chewable tablets are taken as the pack directs. A figure such as 30C describes a homeopathic dilution, not a dose in milligrams.

Give any of them two weeks of steady use before you judge it, and pick a time you will remember.

• Griffonia. It is a source of 5-HTP. Do not combine it with antidepressants or other medicines that act on serotonin without medical advice. The label says it is not recommended for children.
• SAMe tablets. These are practitioner-only, so talk to a practitioner first.
• Tart cherry juice. It has the natural sugar of any fruit juice.
• Magnesium. Higher doses can loosen the bowels. A smaller dose often settles it.
• Pregnancy, breastfeeding, medicines and children. Check with your doctor or pharmacist first. The homeopathic packs say they are not suitable in pregnancy or breastfeeding unless a health professional advises it.

1. Think about your sleep. Is it falling asleep, staying asleep, or a body clock that is out of step?
2. Pick a format you will enjoy. A warm night-time drink suits some people, a capsule suits others.
3. Start with one product, so you can tell what helps you.
4. Look for an AUST L number. A listed medicine can only contain TGA-approved low-risk ingredients, and its maker must hold evidence for what it says the product helps with. A food such as tart cherry juice cannot carry a sleep claim.
5. Check interactions, especially with anything that acts on serotonin.
6. Ask first. Book a Free 10-minute consultation and we will help you choose.

• Trusted natural health advice since 1992, when the first store opened.
• Eight stores across New South Wales and Queensland, with qualified naturopaths and nutritionists on the shop floor.
• Around 50 qualified practitioners in our stores and online team, with more than 230 years of clinical experience between them.
• A free 10-minute consultation in store or online, with no obligation to buy.
• Free Click & Collect with no minimum spend, often ready within an hour during store hours.
• Free standard shipping over $120 in New South Wales and the ACT. Over $150 in Queensland, Victoria, South Australia, Tasmania and Western Australia. Northern Territory shipping is calculated at checkout.
• More than 800 brands and over 10,000 products, chosen by practitioners.

Explore more: read our guide to the best sleep support supplements. You can also browse Natural Sleep Aids, Natural Sleep Sprays and Oils for Sleep. If a busy mind is keeping you up, see L-Theanine Supplements or Magnesium Tablets & Supplements.

1. Therapeutic Goods (Poisons Standard) Instrument 2026, October 2026 version (F2026L01327), Schedule 3 and Appendix H, clause 1, item 28. Available at: https://www.legislation.gov.au/F2026L01327 (Accessed: 4 November 2026).
2. Howatson, G., Bell, P.G., Tallent, J., Middleton, B., McHugh, M.P. and Ellis, J. (2012) 'Effect of tart cherry juice (Prunus cerasus) on melatonin levels and enhanced sleep quality', European Journal of Nutrition, 51(8), pp. 909 to 916. doi: 10.1007/s00394-011-0263-7. No competing interests stated.
3. Pigeon, W.R., Carr, M., Gorman, C. and Perlis, M.L. (2010) 'Effects of a tart cherry juice beverage on the sleep of older adults with insomnia: a pilot study', Journal of Medicinal Food, 13(3), pp. 579 to 583. doi: 10.1089/jmf.2009.0096. Funded by the US National Institute of Mental Health and National Institute of Nursing Research; the product tested was CherryPharm, Inc.
4. Tucker, R.M., Kim, N., Gurzell, E., Mathi, S., Chavva, S., Senthilkumar, D., Bartunek, O., Fenton, K.C., Herndon-Fenton, S.J., Cardino, V.N., Cooney, G.M., Young, S. and Fenton, J.I. (2024) 'Commonly used dose of Montmorency tart cherry powder does not improve sleep or inflammation outcomes in individuals with overweight or obesity', Nutrients, 16(23), 4125. doi: 10.3390/nu16234125. Funded by the Cherry Marketing Institute; the authors declare no conflicts of interest and state the funder had no role in the study.
5. Barforoush, F., Ebrahimi, S., Abdar, M.K., Khademi, S. and Morshedzadeh, N. (2025) 'The effect of tart cherry on sleep quality and sleep disorders: a systematic review', Food Science & Nutrition, 13(9), e70923. doi: 10.1002/fsn3.70923. The authors declare no conflicts of interest.
6. Sutanto, C.N., Xia, X., Heng, C.W., Tan, Y.S., Lee, D.P.S., Fam, J. and Kim, J.E. (2024) 'The impact of 5-hydroxytryptophan supplementation on sleep quality and gut microbiota composition in older adults: a randomized controlled trial', Clinical Nutrition, 43(3), pp. 593 to 602. doi: 10.1016/j.clnu.2024.01.010. The competing-interest declaration is blank in the bibliographic record and should be read in the paper. A published comment raises methodological concerns: doi: 10.1016/j.clnu.2024.05.010.
7. Baden, K.E.R., McClain, H., Craig, E., Gibson, N., Draime, J.A. and Chen, A.M.H. (2024) 'S-adenosylmethionine (SAMe) for central nervous system health: a systematic review', Nutrients, 16(18), 3148. doi: 10.3390/nu16183148. The authors declare no conflicts of interest.
8. Lopresti, A.L., Smith, S.J. and Drummond, P.D. (2026) 'Magnesium supplementation for sleep in adults: a systematic review of randomized controlled trials', Journal of Dietary Supplements, 23(5), pp. 553 to 581. doi: 10.1080/19390211.2026.2719670. The authors declare no conflicts of interest in this paper. The lead author discloses in a 2025 paper in the same field that he is managing director of a contract research organisation funded by nutraceutical companies.
9. Schuster, J., Cycelskij, I., Lopresti, A. and Hahn, A. (2025) 'Magnesium bisglycinate supplementation in healthy adults reporting poor sleep: a randomized, placebo-controlled trial', Nature and Science of Sleep, 17, pp. 2027 to 2040. doi: 10.2147/NSS.S524348. Competing interests: one author is managing director of a contract research organisation that receives funding from nutraceutical companies and has received presentation honoraria from them.
10. Therapeutic Goods (Therapeutic Goods Advertising Code) Instrument 2021 (F2021L01661), compilation F2026C01083, in force 30 September 2026, sections 15, 16 and 19. Available at: https://www.legislation.gov.au/F2021L01661 (Accessed: 4 November 2026).