Soul is the product that introduced the most people to Rain International, and the one almost everyone searches for first. Yet it is surprisingly hard to find a description that neither sells it nor writes off the category. US distributor pages promise things not allowed in Europe, and critical posts often just note that it is a supplement sold through a network, without anyone reading the ingredient list.
This article does the less exciting thing instead. We go through what is actually in a sachet, what each ingredient is known for, how the product is taken, what can and cannot be said about it in the EU, who should be careful, and what it costs.
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What Rain Soul is, and why it comes as a gel
Soul is a dietary supplement in gel form. One box contains 30 sachets of 60 ml, and the gel is taken straight from the sachet or stirred into a little water. Rain International was founded in 2011 in Utah in the United States, and built its entire range around seed based nutrition from cold pressed seeds. Soul was the first product and is still the best seller.
Cold pressing means the seeds are pressed at low temperature rather than heated or treated with solvents, so fatty acids and heat sensitive plant compounds survive the process better. That also explains the format: a gel can carry ground seeds and seed oils in a way a tablet cannot, with no mixing, measuring or water needed to wash it down.
Each serving contains 3.5 g of a proprietary seed blend and provides 30 calories, 7 g of carbohydrate of which 4 g is sugar, and 30 mg of sodium. The product is vegan, gluten free, soy free and kosher. That is also the whole product: no added vitamins, no added minerals, no meaningful amount of protein.
That last point is worth holding onto. Soul contains no added vitamins, and that has consequences further down in this article, when we get to what is allowed to be said about the product.
Rain Soul ingredients: what is in a sachet
The seed blend is proprietary, so the individual amounts are not disclosed. We know the blend weighs 3.5 g and which ingredients it contains, but not how much of each, which is common in the industry and a real limitation: without amounts, there is no way to compare Soul with a study that used one specific dose.
| Ingredient | What it is | What it is known for |
|---|---|---|
| Black seed | Seeds from Nigella sativa | Contains thymoquinone, the most studied component |
| Black raspberry seed | Seeds from black raspberries | Fatty acids and polyphenols from the part of the berry normally discarded |
| Chardonnay grape seed | Seeds from wine grapes | Proanthocyanidins, often sold under the abbreviation OPC |
| D ribose | A sugar with five carbon atoms | Part of the cell's energy molecule ATP and of RNA |
| Trans resveratrol | A polyphenol from grapes | The form of resveratrol studied the most |
Black seed
Black seed, also called black cumin (Nigella sativa), is the ingredient in Soul with the most research behind it, and the one used most often in marketing. The seed has been used in food and traditional medicine around the Mediterranean and in South Asia for thousands of years, and the compound studied the most is thymoquinone, found in the seed's oil.
The state of the research is less settled than headlines suggest. Most studies are small, carried out on oil or extract in set doses, and rarely on whole ground seeds in a blend. If you want to read more about this seed specifically, we have a dedicated article on black seed.
Black raspberry seed
Black raspberry is the ingredient that gives Soul its character, and the reason the blend is called seed based rather than berry based. It is the seeds that are used, not the flesh. They contain fatty acids and the polyphenols left behind once the juice is pressed out, the part of the berry otherwise almost always thrown away.
Chardonnay grape seed
Grape seed from chardonnay grapes contains proanthocyanidins, a group of polyphenols often sold separately as OPC. Here too, the seed is a byproduct of winemaking that contains more plant compounds than what is pressed out of the grape itself.
D ribose
D ribose is a sugar with five carbon atoms, which sets it apart from ordinary sugar, which has six. Ribose is part of the backbone of the cell's energy molecule ATP and of RNA, which is why the ingredient turns up in products aimed at energy and recovery.
Two things are worth knowing. First, ribose counts as sugar on the nutrition label, and part of the 4 g of sugar per serving comes from it. Second, there is no authorised EU health claim for D ribose, however logical the link to ATP sounds.
Trans resveratrol
Resveratrol is the polyphenol that turned red wine into a health headline in the 1990s. The trans form is the biologically active one used in studies. The amount in Soul is not disclosed, which matters, since human studies have almost always used doses far above what a couple of grams of seed blend could reasonably contain.
Other ingredients
Besides the seed blend, the gel contains purified water, dried cane syrup, natural flavors, xylitol, citric acid, xanthan gum and lactic acid. The cane syrup and xylitol provide the sweetness, the citric acid the tartness, and the xanthan gum the texture. None of that is unusual for a gel, but it explains why a serving still contains 7 g of carbohydrate.
How to take Rain Soul: dose, timing and taste
The instructions are short: 1 to 2 servings a day. Tear open the sachet and take the gel straight away, or stir it into a little water if the texture feels too thick. Store cool and dry.
There is no official recommendation on timing. The product does not require fasting or a meal, and nothing in the ingredients suggests morning is better than evening. The practical advice is to keep it somewhere you will actually remember, since a supplement taken irregularly never gets the chance to show whether it makes a difference.
On taste: the sweetness comes from dried cane syrup and xylitol, the tartness from citric acid, and the base note is more berry than herbal. What most people react to, though, is not the taste but the texture, in other words that it is a gel and not a drink. If you find it too thick, stirring the sachet into half a glass of water works well and changes neither the contents nor the dose.
Take one serving a day and a box lasts a month. Take two, and it lasts two weeks, which is worth factoring in before you compare prices.
Rain Soul benefits: what EU rules actually allow to be said
This is the part that differs most depending on where in the world you read about the product, and the most important part of this article.
Within the EU, what may be said about a food or supplement is governed by Regulation 1924/2006 on nutrition and health claims. The rule is simple: only claims listed in the EU's register of authorised claims may be used, each tied to a specific substance in a specific amount. Regulation 1169/2011 also prohibits attributing to a food the property of preventing, treating or curing disease.
For Soul, that means the following. There are no authorised health claims for black seed, raspberry seed, grape seed, D ribose or resveratrol. The word antioxidant is not free to use either: authorised claims about protection against oxidative damage exist only for a small number of substances, among them vitamin C, vitamin E, selenium, zinc and manganese, none of them added to Soul. With no added vitamins, there is not a single authorised health claim to lean on.
That does not mean the ingredients do nothing. It means the evidence has not been judged sufficient for anyone to be allowed to promise an effect, which is different. The distinction tends to get lost in both directions: sellers who treat the absence of authorised claims as a green light, and critics who treat it as a verdict.
So what is actually said? On US distributor pages, Soul is repeatedly described as something that reduces inflammation, strengthens the immune system, improves circulation, supports heart function and slows aging. These claims typically come from the manufacturer's own marketing material, which operates under different rules in the US, where a disclaimer that the claims have not been evaluated by the FDA is treated as sufficient. Within the EU, the same sentences cannot be used, disclaimer or not.
Then there is a third category that no manufacturer stands behind: claims that individual sellers make up on social media, often about diseases. If you come across them, the reasonable conclusion is that whoever wrote them does not know the rules.
Our position is to describe what you get, not what it does. You get a concentrated serving of cold pressed seeds that would otherwise be hard to work into daily life, in a format that requires no planning. What it does for you specifically is something only you can judge.
Rain Soul side effects and who should be careful
Soul is a dietary supplement, not a medicine, and for most healthy adults it is unproblematic at the recommended dose. A few situations still deserve thought, and nearly all of them concern black seed.
If you take blood thinning medication, check with a doctor or pharmacist first. Black seed has been shown in laboratory and animal studies to affect platelet function, and even though it is not known whether a blend this size affects an ongoing treatment, that is a conversation worth having before you start, not after.
The same reasoning applies before planned surgery. A common recommendation in healthcare is to pause supplements around two weeks before a procedure, precisely because the effect on blood clotting is not always known. Ask your clinic what applies in your case.
If you take medication for high blood pressure or diabetes, it is worth knowing that black seed has been studied for effects on both blood pressure and blood sugar. That is a reason to pay attention to how you feel, not a reason to change your medication on your own. A serving also contains 4 g of sugar, which matters if you count carbohydrates.
If you are pregnant or breastfeeding, there is not enough evidence to assess black seed at supplement doses, and higher doses have traditionally been avoided during pregnancy. The standard advice applies: check with a midwife or doctor before starting any supplement at all.
If you have a known allergy to berries or grapes, read the full ingredient list on the box. The gel also contains xylitol, a sugar alcohol that can cause loose stools in sensitive individuals in larger amounts, and which is toxic to dogs. Do not leave a sachet lying around.
Children, finally: supplements of this kind are made for adults, and for children the question should go to a pediatrician or doctor first.
Rain Soul price: what it costs and where to buy it
Soul is not sold in ordinary stores or through the large online marketplaces, but through Rain's own online store, usually via a partner. We are one such independent partner, which you should factor in as you read.
The price in the United States, checked on 17 August 2026, is $100.15 for a one time purchase and $77.04 with a subscription. The store lists the price in US dollars. With 30 servings per box, that works out to $3.34 per serving one time and $2.57 per serving with a subscription. Shipping is added at checkout.
The subscription ships monthly and can be cancelled any time, with no lock in period. The full price list for the range, the price per serving and the differences between countries are in our article on what Rain's products cost.
Soul, Soul Red and Core: the difference
Three of Rain's supplements often get mixed up, so here is the short version. Soul Red is built on the same idea but uses red raspberry seed as its main ingredient instead of black, has a slightly larger blend per serving, and comes with 15 servings per box instead of 30. Core is not the same kind of product at all: it is a liquid green base with kale, spirulina, wheatgrass and herbs, meant for anyone who eats too few vegetables, and the only product in the range that may contain traces of gluten.
Which of the eight products suits you, and how they can be combined, is covered in our guide to Rain's products. The full ingredient list and nutrition information for this product are on the Rain Soul product page.
Food supplements are not a substitute for a varied diet and a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of children. The information describes the product’s contents and is not intended to prevent, treat or cure any disease.
Is Rain Soul worth it?
Soul makes sense if you want a simple daily routine built around cold pressed seeds, like not having to measure or mix anything, and are willing to judge the result yourself over time. In practice, it is a concentrated seed serving in a format that is hard to forget to take.
Soul does not make sense if you are looking for a treatment, expect a noticeable effect within days, or need a cheap option. A little over a hundred dollars a month for a supplement is real money, and it does more good spent on a better diet if that is not already in place.
If you want to try it anyway, the advice is the same as in our product guide: one product at a time, at least 30 days, and judge it against what you actually notice, not against what anyone has promised. More articles are available in our health guide.