Backed by Science, Crafted for Relief
RefluxRaft‘s formulation is supported by scientific research on alginate-based supplements.
Published Research on Alginate Therapy
Effectiveness
This article explains how seaweed-based gels act like a floating physical lid on top of your stomach acid. This prevents the acid and harmful chemicals from splashing up into your food pipe or throat, offering a safe alternative to pills that change how your stomach works.
Gilbert, MR.. Are Alginates All That? AAO-HNS Bulletin. Published online November 20, 2023. Accessed February 10, 2026.
After reviewing many studies, researchers found that alginates are much better at stopping heartburn than fake treatments or regular antacids. They are especially helpful because they target the specific "pocket" of acid that forms right after you eat.
Leiman DA, Riff BP, Morgan S, et al. Alginate therapy is effective treatment for GERD symptoms: a systematic review and meta-analysis. Dis Esophagus. 2017;30(5):1-9. doi:10.1093/dote/dow020
This review article describes alginates and discusses the role they can play in helping with GERD. Uses for atypical symptoms, on-demand use, PPI transition, and efficacy and safety in women and children are discussed.
Bor S, Kalkan IH, Celebi A, et al. Alginates: From the ocean to gastroesophageal reflux disease treatment. Turk J Gastroenterol. 2019;30(Suppl 2):109-136. doi:10.5152/tjg.2019.19677
Scientists used special imaging to watch where the alginate raft goes inside the stomach. They found that it sits perfectly on top of the "acid pocket" that appears after a meal, physically pushing it down so it cannot escape upward into the esophagus and throat.
Rohof WJ, Bennink RJ, Smout AJ, Edward P, Boeckxstaens GE. An alginate-antacid formulation localizes to the acid pocket to reduce acid reflux in patients with gastroesophageal reflux disease. Clin Gastroenterol Hepatol. 2013;11(12):1585-1591. doi:10.1016/j.cgh.2013.04.046
This well-done cross-over study showed that two different forms of alginate therapy are effective at reducing acid in the esophagus.
Dettmar PW, Hampson FC, Taubel J, Lorch U, Johnstone LM, Sykes J, Berry PJ. The suppression of gastro-oesophageal reflux by alginates. Int J Clin Pract. 2007 Oct;61(10):1654-62. doi:10.1111/j.1742-1241.2007.01524.x
This article studied various alginate formulas to determine which created the best raft. They found that formulas with a calcium source and lower acid-reducing properties made the strongest, most effective rafts.
Hampson FC, Farndale A, Strugala V, Sykes J, Jolliffe IG, Dettmar PW. Alginate rafts and their characterisation. Int J Pharm. 2005 Apr 27;294(1-2):137-47. doi:10.1016/j.ijpharm.2005.01.036
For people whose daily PPI reflux pills are not enough, adding an alginate after meals and at bedtime can help. This study showed a significant decrease in nighttime reflux symptoms even when PPIs were already being used once daily.
Reimer C, Lødrup AB, Smith G, Wilkinson J, Bytzer P. Randomised clinical trial: alginate (Gaviscon Advance) vs. placebo as add-on therapy in reflux patients with inadequate response to a once daily proton pump inhibitor. Aliment Pharmacol Ther. 2016;43(8):899-909. doi:10.1111/apt.13567
This review explains the science of how seaweed-based alginate reacts with stomach acid to create a gel barrier. Because it forms quickly and lasts for hours, it provides significant and lasting relief.
Mandel KG, Daggy BP, Brodie DA, Jacoby HI. Review article: alginate-raft formulations in the treatment of heartburn and acid reflux. Aliment Pharmacol Ther. 2000;14(6):669-690. doi:10.1046/j.1365-2036.2000.00759.x
Researchers found that after eating, a pool of pure acid sits right at the top of the stomach. Taking an alginate after a meal pushes that acid pocket down, even in people who are partly lying down.
Kwiatek MA, Roman S, Fareeduddin A, Pandolfino JE, Kahrilas PJ. An alginate-antacid formulation (Gaviscon Double Action Liquid) can eliminate or displace the postprandial “acid pocket” in symptomatic GERD patients. Aliment Pharmacol Ther. 2011;34(1):59-66. doi:10.1111/j.1365-2036.2011.04678.x
Safety
This comprehensive review outlines options for relieving reflux symptoms in pregnant and breastfeeding women. The authors recommend alginates as part of the first step in treatment because of their safety and effectiveness.
Ali RAR, Hassan J, Egan LJ. Review of recent evidence on the management of heartburn in pregnant and breastfeeding women. BMC Gastroenterol. 2022 May 4;22(1):219. doi:10.1186/s12876-022-02287-w
Since these gels work physically and are not absorbed into the bloodstream, they are generally considered safe for pregnant women. This study found that expectant mothers experienced significant symptom relief without harm to themselves or their babies.*
Strugala V, Bassin J, Swales VS, et al. Assessment of the safety and efficacy of a raft-forming alginate reflux suppressant (Liquid Gaviscon) for the treatment of heartburn during pregnancy. ISRN Obstet Gynecol. 2012;2012:481812. doi:10.5402/2012/481812
This large review confirms that seaweed-based “rafts” are a top choice for treating heartburn symptoms during pregnancy.* They work quickly to block acid and are considered safe because they do not interfere with the body’s or baby’s chemistry.
Quartarone G. Gastroesophageal reflux in pregnancy: a systematic review on the benefit of raft forming agents. Minerva Ginecol. 2013;65(5):541-549.
Relief That Works With Your Body
RefluxRaft uses a mechanical method of action - no absorption, no disruption.
Step 01
After swallowing, RefluxRaft’s proprietary alginate complex reacts with stomach acid.
Step 02
The reaction gently releases tiny bubbles that lift the gel to the surface of the stomach contents, creating a floating barrier we call a “raft”.
Step 03
This “raft” sits on top of your stomach contents, stopping acid from rising into your esophagus. .After 4 hours, the “raft” passes naturally—never entering your bloodstream.
Digestive Support That Fits Your Life.
Digestive Support That Fits Your Life.
- Helps manage symptoms like heartburn, regurgitation, bloating, nausea, and throat discomfort.
- May support long-term digestive balance with functional ingredients like ginger and Deglycyrrhizinated licorice (DGL).
- Doesn’t enter the bloodstream—works where it’s needed.
- Ideal for anyone who wants to manage symptoms of acid reflux or GERD without harsh medications.
- Designed to fit into your daily routine with clean, functional ingredients
- Helps manage symptoms like heartburn, regurgitation, bloating, nausea, and throat discomfort.
- May support long-term digestive balance with functional ingredients like ginger and Deglycyrrhizinated licorice (DGL).
- Doesn’t enter the bloodstream—works where it’s needed.
- Ideal for anyone who wants to manage symptoms of acid reflux or GERD without harsh medications.
- Designed to fit into your daily routine with clean, functional ingredients
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