Guide

Does Soothe & Renew work? A fiber powder whose label prints no psyllium amount, and the trials that used about 10 g

Soothe & Renew is a 12 oz pouch of fiber powder from Soothe Naturals, a family-owned California company. One tablespoon (11.5 g) holds a 7.5 g blend of flax, apple and psyllium husk and a 4 g blend of six herbs, and the label prints no amount for any single ingredient. The brand sells it as a daily fiber for regularity and heart health, and many of the reviews on its own page are about reflux. This page sets out what the label prints, what the psyllium and flaxseed trials used, and what the reviews, price and terms say.

What Soothe & Renew is, and what it is not

The panel is a Supplement Facts panel, not a Drug Facts panel, so it is sold as a dietary supplement and not as an over-the-counter laxative. A serving is 1 tablespoon (11.5 g) and the pouch lists “about 30.” Per serving the label prints 40 calories, 2 g of fat (all polyunsaturated), 9 g of total carbohydrate and 7 g of dietary fiber, 25% of the Daily Value. Below those lines sit the two blends:

• Whole Fiber Blend, 7.5 g: flax (seed), whole apple (fruit) and psyllium (husk).
• Soothe Naturals Herbal Blend, 4 g: beet (root), pomegranate (fruit), cinnamon (bark), nopal cactus (pad), ginger (root) and moringa (leaf).

The two blends add up to the full 11.5 g. No amount is printed for psyllium, flaxseed, apple or any of the six herbs, and the label does not say the lists run in weight order. Because the 7 g of fiber sits inside the 7.5 g fiber blend, the psyllium is at most 7.5 g a tablespoon and is probably less. No sweetener, sugars line, sodium line or other-ingredients line is printed; the brand says “no added flavors or sugar.”

The panel lists no laxative herb such as senna, cascara or aloe, and no magnesium. The ingredients that act on stool are the bulk-forming fibers (psyllium and flax) and the apple fiber. The label has no allergen or facility statement, so we treat allergens as undisclosed, and vegan, gluten-free and non-GMO status is not stated.

Is there a trial of Soothe & Renew itself?

We found none. A PubMed search for the brand returned only unrelated records, ClinicalTrials.gov returned no results for the brand or the ingredient combination, and the product page cites no study. None of the ingredients is a branded or trademarked extract; all are named as plain plant parts, so there is no branded-ingredient trial to point to either. The evidence below is for the fiber class, not for this blend.

The psyllium and flaxseed trials, and the doses they used

Psyllium and flaxseed have randomized trials for stool frequency, and psyllium has them for LDL cholesterol. The recurring point is dose: most used about 10 g of psyllium a day or more, and the label does not print how much psyllium a tablespoon holds.

• Chronic constipation. A meta-analysis of 16 randomized trials in 1,251 adults found fiber supplements raised response from 41% to 66% (risk ratio 1.48, 95% CI 1.17 to 1.88). Psyllium and pectin had significant effects, and response and stool frequency improved only with higher fiber doses, above 10 g a day. Flatulence was higher on fiber (SMD 0.80) (van der Schoot et al., American Journal of Clinical Nutrition, 2022).
• Irritable bowel syndrome. A meta-analysis of 30 randomized trials in 1,904 adults, six of them of psyllium, found 52% responded to fiber against 44% to control (risk ratio 1.21, 1.03 to 1.41), with psyllium specifically at 1.53 (1.06 to 2.19). Nine trials that reported overall symptom scores found no significant effect (Staudacher et al., Gastroenterology, 2026).
• LDL cholesterol. A meta-analysis of 28 trials in 1,924 people, each lasting three weeks or longer, found a median of about 10.2 g of psyllium a day lowered LDL cholesterol by 0.33 mmol/L (95% CI 0.27 to 0.38), non-HDL cholesterol by 0.39 mmol/L and apoB by 0.05 g/L (Jovanovski et al., American Journal of Clinical Nutrition, 2018).

Three smaller trials show the doses used for each fiber:

• Psyllium, 51 people with type 2 diabetes and constipation. Baked psyllium, 10 g twice a day in cookies for 12 weeks, single-blind. Constipation symptoms, weight, glucose and lipids improved against placebo, and no adverse effects were reported (Noureddin et al., Complementary Therapies in Medicine, 2018).
• Flaxseed, 53 people with type 2 diabetes and constipation. Baked flaxseed, 10 g twice a day for 12 weeks, single-blind. The constipation score changed by 2.46 against 0.41 on placebo, with falls in weight, glucose, cholesterol and LDL, and no adverse effects were reported (Soltanian and Janghorbani, Nutrition & Metabolism, 2018).
• Flaxseed flour against lactulose, 90 adults with functional constipation. 50 g a day of flaxseed flour (60 people) or 15 mL of lactulose (30 people) for four weeks. Weekly bowel movements rose from 2 to 7 on flax and from 2 to 6 on lactulose (Sun et al., Asia Pacific Journal of Clinical Nutrition, 2020).

One more trial gives a plain psyllium reference. In 72 constipated adults, 5 g twice a day of psyllium (10 g a day) for four weeks produced a response in 24 of 32 (75%), the same as a plum-derived mixed fiber (Erdogan et al., Alimentary Pharmacology & Therapeutics, 2016).

The label against the trial doses

The arithmetic below uses only the label and the trial papers. At one tablespoon the pouch gives 7 g of fiber from flax, apple and psyllium together; at two tablespoons, the top of the brand’s “at least 1-2 tablespoons” direction, it gives 14 g of fiber from 23 g of powder.

The 7 g at one tablespoon and the 14 g at two compare with trial doses of 10 g or more of a single fiber, so the trials do not show what this blend does at either amount.

The herbs: beet, pomegranate, cinnamon, nopal cactus, ginger and moringa

All six share a 4 g blend, and the label does not say how much each contributes. None is a laxative, and the evidence for each is not about this product.

• Nopal cactus. The one randomized trial we found used an extracted nopal fiber powder, not the pad: 60 people with IBS, four arms, double-blind, one week, nopal fiber at 10, 20 or 30 g a day against 30 g of dextrose. Adequate symptom relief was reported by 87% at 20 g and 80% at 30 g against 33% on placebo, the 30 g dose caused more loose stools, and the authors called for a larger and longer trial (Remes-Troche et al., Neurogastroenterology & Motility, 2021). Nopal here is one of six herbs in a 4 g blend, so a tablespoon holds a small fraction of the lowest trial dose.
• Moringa. A trial in 65 people with prediabetes gave six capsules a day of moringa leaf powder (2,400 mg) or placebo for 12 weeks; fasting glucose and HbA1c moved in opposite directions in the two groups (Gómez-Martínez et al., Nutrients, 2022). It was a glucose trial, not a gut trial, and the label does not say what share of the 4 g is moringa.
• Beet. A meta-analysis of 16 short crossover trials (254 participants, 2 hours to 15 days) found inorganic nitrate and beetroot juice lowered systolic blood pressure by 4.4 mm Hg (Siervo et al., Journal of Nutrition, 2013). Those trials used juice or nitrate, not a share of a powder blend.
• Pomegranate, cinnamon and ginger. This page cites no trial of these three at the amounts in a tablespoon, and the label prints none.

How to take it

The brand’s directions say to take at least 1 to 2 tablespoons daily, pour them into a full cup of water, fruit juice or a smoothie, stir thoroughly (it suggests an electric frother or whisk), or sprinkle the powder over yogurt or oatmeal. It says to stay hydrated through the day when taking any fiber mix, and that the mix can be taken in the morning for bowel regularity, before meals or before bed. The 30-serving count assumes one tablespoon; at two a pouch lasts about 15 days.

For medicines, the brand’s FAQ says to take it at least 2 hours before or after any medications. Fibers that form a gel can slow the absorption of other pills, so a pharmacist can say how to space a specific medicine. How long psyllium takes to act is covered in the psyllium timing guide.

Side effects and who should check first

No warning, pregnancy, medication or age statement is printed on the four product images we read (label, ingredient graphic, directions and front); the back of the pouch was not read. On its page the brand says Soothe & Renew is generally safe during pregnancy and suggests speaking with a physician, and it states it was formulated safely for people with diabetes. Those are the brand’s statements.

Gas, bloating and stomach cramps are the usual effects of adding fiber, and the constipation meta-analysis found more flatulence on fiber than on control. One reviewer on the brand’s page reported strong abdominal pain after starting. People who take blood-sugar or blood-pressure medicines can ask a pharmacist how the blend fits with them.

What the reviews say

The brand’s page runs a Judge.me review widget showing 4.73 out of 5 from 255 reviews: 204 five-star, 39 four-star, 8 three-star, 2 two-star and 2 one-star. We read 247 of the 255. In the page markup, 223 of the 247 carry a Judge.me badge reading “review earned for future purchase,” which marks a reward for reviewing, 22 are marked as imported from another provider, and 216 are flagged verified buyer. The Judge.me shop is shared with Stomach Soothe, and the feed we read is filtered to this product.

Amazon shows 4.0 out of 5 from 9 ratings (50% five-star, 23% four, 14% three, 0% two and 13% one). The listing is new, first available in 2026, and Amazon shows no review summary at that count. The three reviews on its first page are a five-star about digestion and blood pressure, a three-star about a strong scent and a one-star about the taste. We found no Trustpilot profile for soothenaturals.co.

Of the 247 reviews read, 72 mention reflux, heartburn, GERD or acid-reducing medicines, 35 mention taking Stomach Soothe as well, 39 mention taste and 34 mention regularity, constipation or bowels. The recurring praise is steadier regularity and digestion, a mild cinnamon taste, and relief from reflux, mostly alongside Stomach Soothe. The recurring complaints are a strong taste or smell, powder that clumps and dissolves slowly, no noticeable effect after several bags, and, in one review, abdominal pain on starting.

Price, the subscription and the refund terms

A pouch is $39.00 on the brand site, which is $1.30 a day at one tablespoon and $2.60 at two. A three-pouch pack is $99.00 ($1.10 a day at one tablespoon). A pouch on subscription is $36.00 on a monthly plan ($1.20 a day) or $35.00 on an every-two-weeks plan ($1.17). Amazon lists $39.99 ($1.33 a day at one tablespoon, $2.67 at two). Brand shipping is free on orders of $65 and on subscriptions; the charge on a single pouch is not stated.

The brand’s refund policy states a 45-day promise: a return is accepted within 45 days of receiving the order, the brand provides no return label, and only one refund per product is given per address. It also states: “Subscriptions are non-refundable and best suited for returning customers,” and that a subscription requires a commitment to receive at least 2 bags before cancellation. The product page repeats that the item is a recurring purchase and that buying it authorizes charges to the payment method until the order is fulfilled or cancelled. A single pouch can be bought once without subscribing. We did not read Amazon’s return terms for this listing.

A keyword search of the 247 brand-page reviews for cancel, refund, charge and subscription matched two reviews, neither a billing complaint, and none of the Amazon reviews read raised billing. That is a small sample and no independent profile exists, so it is an absence of data and not a clean record.

Soothe & Renew vs Stomach Soothe

The two are separate products in the same pouch size, 12 oz with about 30 tablespoon servings, and both are $39.00 on the brand site with the same refund and subscription terms. They differ in what is inside. The Stomach Soothe panel lists an 11.1 g blend of apple, green banana, arrowroot, papaya, sodium alginate, slippery elm and marshmallow root, plus 400 mg of L-glutamine, and 3 g of fiber. Soothe & Renew lists 7 g of fiber from flax, apple and psyllium plus six herbs, and has no alginate or glutamine. The brand’s page says to take Stomach Soothe before meals and Soothe & Renew at any time of day. Brand-page ratings are 4.73 from 255 for Soothe & Renew and 4.53 from 3,667 for Stomach Soothe, and Amazon shows 4.0 from 9 and 4.1 from 459. No trial compares them; the Stomach Soothe guide has that product’s evidence.

Who Soothe & Renew is for

• Someone who wants a daily fiber powder stirred into water, juice, a smoothie or yogurt and is comfortable with a label that prints two blend weights and no single-ingredient amounts.
• Someone whose main goal is regularity, the outcome the fiber trials measured, and who is prepared to drink a full cup of water with each serving.
• Someone who accepts the brand’s terms: a 45-day return on one-time purchases and, for subscriptions, two orders before cancellation.

For a psyllium husk with the amount printed, the catalog has Metamucil, Yerba Prima and NOW Foods, and the Yerba Prima guide sets out the same dose comparison for a psyllium-only powder. The constipation guide starts from the symptom, as does the quiz.

The products in this catalog

Common questions

Sources

• van der Schoot A, Drysdale C, Whelan K, Dimidi E. “The Effect of Fiber Supplementation on Chronic Constipation in Adults: An Updated Systematic Review and Meta-Analysis of Randomized Controlled Trials.” American Journal of Clinical Nutrition, 2022;116(4):953–969. PubMed 35816465
• Staudacher HM, Rucco V, Mancell S, Dimidi E, Whelan K. “Fiber Supplementation in Irritable Bowel Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.” Gastroenterology, 2026. PubMed 42600900
• Jovanovski E, Yashpal S, Komishon A, et al. “Effect of psyllium (Plantago ovata) fiber on LDL cholesterol and alternative lipid targets, non-HDL cholesterol and apolipoprotein B: a systematic review and meta-analysis of randomized controlled trials.” American Journal of Clinical Nutrition, 2018;108(5):922–932. PubMed 30239559
• Noureddin S, Mohsen J, Payman A. “Effects of psyllium vs. placebo on constipation, weight, glycemia, and lipids: A randomized trial in patients with type 2 diabetes and chronic constipation.” Complementary Therapies in Medicine, 2018;40:1–7. PubMed 30219432
• Soltanian N, Janghorbani M. “A randomized trial of the effects of flaxseed to manage constipation, weight, glycemia, and lipids in constipated patients with type 2 diabetes.” Nutrition & Metabolism, 2018;15:36. PubMed 29760761
• Sun J, Bai H, Ma J, et al. “Effects of flaxseed supplementation on functional constipation and quality of life in a Chinese population: A randomized trial.” Asia Pacific Journal of Clinical Nutrition, 2020;29(1):61–67. PubMed 32229443
• Erdogan A, Rao SSC, Thiruvaiyaru D, et al. “Randomised clinical trial: mixed soluble/insoluble fibre vs. psyllium for chronic constipation.” Alimentary Pharmacology & Therapeutics, 2016;44(1):35–44. PubMed 27125883
• Remes-Troche JM, Taboada-Liceaga H, Gill S, et al. “Nopal fiber (Opuntia ficus-indica) improves symptoms in irritable bowel syndrome in the short term: a randomized controlled trial.” Neurogastroenterology & Motility, 2021;33(2):e13986. PubMed 32935904
• Gómez-Martínez S, Díaz-Prieto LE, Vicente Castro I, et al. “Moringa oleifera Leaf Supplementation as a Glycemic Control Strategy in Subjects with Prediabetes.” Nutrients, 2022;14(1):57. PubMed 35010932
• Siervo M, Lara J, Ogbonmwan I, Mathers JC. “Inorganic nitrate and beetroot juice supplementation reduces blood pressure in adults: a systematic review and meta-analysis.” Journal of Nutrition, 2013;143(6):818–826. PubMed 23596162
• Soothe Naturals: Soothe & Renew product page, label, ingredient and directions images, FAQ and prices (soothenaturals.co); refund policy (soothenaturals.co/policies/refund-policy)
• Amazon listing for Soothe Naturals Soothe & Renew Fiber Supplement Powder (ASIN B0GWS2TYSW): price and ratings. amazon.com