The most common searches about Rain are rarely about the company. They are about a single product: what is Rain Soul good for, what separates Soul from Soul Red, how often should Core be taken, can several products be combined. Fair questions, but the answers are scattered across eight different product pages.
This guide gathers them in one place. You will find out what each product contains, who it is made for, how it is taken and what may actually be said about the effects within the EU. At the end there is a simple route forward for anyone who just wants to know where to start.
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What all eight have in common
Rain International was founded in 2011 in Utah in the USA and built its entire range on nutrition from cold pressed seeds. The seeds are pressed at low temperatures, without high heat and without synthetic additives, and the same basic idea returns in every product: the nutrition should come from the part of the plant where the plant itself stored it.
All eight products are vegan, free from soy and made from natural ingredients. Most are gluten free as well, with one exception worth remembering: core contains wheatgrass and may contain traces of wheat and gluten.
The format, on the other hand, differs, and in practice that affects the choice more than many people expect. Soul and soul red come as a gel in a single serving sachet and can be taken straight from the packet. Core and bend are liquids measured out in a cap. Pure, beat and form are powders mixed into water or another liquid. Bryt is the only product in capsule form.
Quick guide: what each product does
| Product | Suits you if you | Format | Usual dosage |
|---|---|---|---|
| soul | want a simple daily seed based routine | Gel, 60 ml, 30 servings | 1 to 2 servings per day |
| soul red | want the same idea in a more concentrated blend | Gel, 60 ml, 15 servings | 1 to 2 servings per day |
| core | rarely get enough greens | Liquid, 30 ml, 30 servings | 1 to 2 servings per day |
| bend | think about joints, mobility and bones | Liquid, 30 ml, 30 servings | 1 to 2 servings per day |
| pure | want to give your gut bacterial cultures and fibre | Powder, 3 g, 30 servings | 1 to 2 servings per day |
| bryt | want focus without an energy drink | Capsules, 30 pieces, 15 servings | 1 to 2 capsules per day |
| beat | train or move a lot | Powder, 5 g, 30 servings | Twice per day |
| form | need to get more protein into your day | Powder, 15 servings | 1 serving per day |
Rain Soul: the gel that started it all
Soul is Rain's best known product and the one most people search for first. Every serving of 60 ml contains 3.5 grams of a proprietary blend with black cumin seeds, black raspberry seeds, chardonnay grape seeds, D ribose and trans resveratrol. The box holds 30 sachets, which is a month of routine if you take one per day.
The product is vegan, gluten free, soy free and kosher, and gives 30 calories per serving. The instructions are simple: 1 to 2 servings per day, straight from the sachet, which makes soul the product that requires the least planning of all eight.
So what is soul good for? The honest answer: within the EU there are no approved health claims for black cumin, raspberry seeds or grape seeds, so nobody may promise a specific effect. What can be said is what you get: a concentrated serving of cold pressed seed ingredients that are otherwise hard to fit into everyday life. If you want to read more about the main ingredient we have a separate guide to black seed, and every detail is on the product page for Rain Soul.
Rain Soul Red: the same idea, a redder profile
Soul red brings the question we get second most often: how does it differ from ordinary soul? Concretely, the difference lies in which seed carries the blend. In soul the black raspberry seeds are the main ingredient, in soul red it is powder from red raspberry seeds, rounded out with grape seed powder, D ribose, black cumin seed oil and trans resveratrol.
The blend is also somewhat larger, 4.03 grams against 3.5 grams per serving, and the sodium content is higher. The most important practical difference is the box: soul red contains 15 servings, not 30. Expect it to last half as long at the same dosage, which is worth knowing when you compare prices.
In other parts of the world soul red is marketed for the heart and circulation. Within the EU there are no approved claims for those ingredients, so we will not repeat them here. Think of soul red as the more concentrated version for someone who has already used soul and wants to try something else, not as a stronger medicine. The full contents are on the page about Rain Soul Red.
Rain Core: the green base
Core is the product for everyone who knows their vegetable intake falls short. A serving of 30 ml contains 2000 mg of seed blend and 1855 mg of herbal blend, with kale, spirulina, wheatgrass, milk thistle, dandelion, aloe vera and cranberry seeds. The bottle gives 30 servings.
Rain states 1 to 2 servings per day for normal use, and 3 to 4 servings for anyone who wants a more intensive period. Our advice is to stay at 1 to 2 if you are new, and to increase only once you know how your stomach responds. The word detox is often used about core, but it is worth staying sober about: the liver and kidneys handle that work, and no approved EU claims exist for herbs of this kind.
One detail that matters: core contains wheatgrass and may contain traces of wheat and gluten. If you have coeliac disease this is the one product in the range you need to skip. The rest of the contents are on the page about Rain Core.
Rain Bend: for joints and mobility
Bend is the most composite product in the range. Beyond the proprietary seed blend of 600 mg with pumpkin seed oil, ground flaxseed and black cumin seed oil, there is a joint formula of 727.5 mg with vegan glucosamine sulphate, curcumin, palmitoylethanolamide, sodium hyaluronate and pepper.
Here there are also genuine approved health claims to lean on, thanks to the vitamin content. Vitamin D and vitamin K contribute to the maintenance of normal bones, vitamin D also contributes to normal muscle function, and niacin and vitamin B12 contribute to the reduction of tiredness and fatigue. For the glucosamine and the curcumin themselves, however, no claims are approved within the EU.
A common question is whether bend contains shellfish, since glucosamine is traditionally extracted from crustacean shells. The answer is no: the glucosamine in bend is vegan, which makes the product usable even if you are allergic to shellfish. The dosage is 1 to 2 servings per day. Read more on the page about Rain Bend.
Rain Pure: bacterial cultures and fibre in the same sachet
Pure combines two things the gut normally gets from different directions. First, live bacterial cultures, 20 billion CFU per serving in total across thirteen strains with Lactobacillus acidophilus as the largest, and second, a fibre blend of inulin, flaxseed, pumpkin seeds and watermelon seeds that gives 2 grams of fibre per serving.
The serving is 3 grams of powder mixed into 2.4 dl of water, 1 to 2 times per day or as needed. The flavours are lemon and lime, and the product is soy free and gluten free.
Restraint in wording applies here too. Within the EU even the term probiotic counts as a health claim in itself, and no effects of bacterial cultures may be promised. What is uncontroversial to say is that fibre is something most people get too little of, which we cover in the guide to fibermaxxing. The ingredient list is on the page about Rain Pure.
Rain Bryt: focus in capsule form
Bryt is the nootropic of the range and the only product in capsule form. Two capsules contain 75 mg of caffeine, 100 mg of L theanine, 200 mg of bacopa monnieri, 75 mg of lion's mane, 75 mg of beta alanine, 50 mg of N acetyl tyrosine plus powders from watermelon seeds, coconut and chia seeds. The box holds 30 capsules, which is 15 servings.
The vitamin content is substantial and delivers several approved claims: vitamin B6, vitamin B12, niacin, pantothenic acid and vitamin C all contribute to the reduction of tiredness and fatigue, vitamin B6, B12 and C contribute to normal psychological function, and pantothenic acid contributes to normal mental performance.
The caffeine deserves a thought before you buy. 75 mg is roughly a cup of coffee, which is manageable for most people but clearly noticeable if you are sensitive or take the capsules late in the day. If you are pregnant or breastfeeding you should keep track of your total caffeine intake. We have written a separate article about the mushroom in the blend, lion's mane, and the rest is on the page about Rain Bryt.
Rain Beat: beetroot for active days
Beat is the product aimed most clearly at people who move. The base is Rednite, a powder from beetroot juice, together with L arginine, beta alanine and a range of plant ingredients: cranberry seed powder, hibiscus flower, bamboo extract, grape seed extract, blueberry juice powder and pomegranate seed powder.
The vitamins deliver the approved claims. Vitamin C contributes to the normal function of the immune system and to the reduction of tiredness and fatigue, and thiamine, niacin, vitamin B6, vitamin B12, pantothenic acid and biotin all contribute to normal energy yielding metabolism. For beetroot and L arginine no claims are approved, however popular those ingredients are among athletes.
One scoop of 5 grams is mixed into 2.4 dl of water and taken twice per day, which makes beat the product in the range that is dosed most often. A serving contains under 1 gram of sugar. The details are on the page about Rain Beat.
Rain Form: the protein
Form is the easiest of the eight to judge, because protein is one of the few areas where the EU has actually approved health claims. One serving gives 20 grams of plant protein from pea, hemp, chia and sacha inchi, more than 3 grams of natural BCAA and 0 grams of sugar. The box holds 15 servings in vanilla.
Protein contributes to the maintenance of muscle mass, to the growth of muscle mass and to the maintenance of normal bones. Those are claims that may be used, and they apply to all protein: from food first of all, from supplements when food does not stretch far enough.
The serving is mixed into 2.4 dl of liquid or blended into a smoothie, 30 minutes before or after training, and according to the manufacturer it can be used as a meal replacement. The product is keto friendly and free from soy, gluten and milk protein, which makes it useful when appetite is poor or when dairy based protein does not work. We have written more about that in the guide to protein when appetite is gone, and the contents are on the page about Rain Form.
Which one should you start with?
If you want a single answer: start with soul. It is the product the range was built around, it is the easiest to take and it requires no equipment, no mixing and no timing.
If you have a clear goal, though, it is better to work from that:
| Your situation | Start here |
|---|---|
| You want to try the whole idea of seed nutrition | soul |
| You eat too few vegetables and you know it | core |
| Your stomach is troublesome or your fibre intake is low | pure |
| Joints and mobility bother you most | bend |
| You need to hold your focus through long working days | bryt |
| You train and want something around your sessions | beat before, form after |
| You get too little protein | form |
One practical piece of advice whatever you choose: run one product at a time for at least 30 days before you add the next. Start with three at once and you will never know which one made the difference, and you will have paid for three before knowing whether any of them suits you.
Can several products be combined?
Yes, the products are made to work together, and Rain also sells them in packs. Many people combine soul with core, or add bend or form depending on what they want to achieve.
Two things are worth keeping an eye on. The first is the overlap: black cumin appears in soul, soul red, core and bend, so a combination does not mean you get something new every time. The second is the whole picture, meaning that you do not exceed the recommended dose of any single product just because you take several.
If you take medication regularly, an extra check is worthwhile. Bend contains vitamin K, which affects blood thinning medicines of the warfarin type, and bryt contains caffeine that counts towards your total daily intake. In such cases, check with a doctor or pharmacist before you start.
What you can realistically expect
This is the part usually missing when Rain's products are described online, especially in enthusiastic groups on social media. Food supplements are exactly that, supplements. They replace neither sleep, movement, food nor the treatment your doctor has prescribed, and the effects are generally modest compared with how they are sometimes portrayed.
Within the EU the rules are strict as well. For several of the main ingredients, such as black cumin, grape seeds, glucosamine, beetroot and bacterial cultures, there are no approved health claims at all. Where claims do exist they concern almost exclusively the vitamins and the protein in the products. A seller who promises more than that is promising more than the rules allow.
So expect a product to be a complement you try for a period and judge for yourself, not a solution to a problem. Current prices, packs, subscription terms and any guarantees are always shown directly in Rain's official store.
Good to know before you start
Follow the dosage on the packaging and begin at the lower end of the range, especially with core and pure, where the stomach may need a few days to get used to fibre and herbs.
If you are pregnant, breastfeeding, taking medication regularly or living with a chronic illness, check with a doctor or pharmacist before starting any supplement. If you have coeliac disease, skip core. If you are sensitive to caffeine, keep an eye on bryt.
Food supplements do not replace a varied diet and a healthy lifestyle. Do not exceed the recommended daily dose. The information in this article describes diet and content and is not intended to prevent, treat or cure any disease.
Summary
Rain's range consists of eight seed based products with a clear purpose each: soul and soul red as daily gels, core as the green base, bend for joints and bones, pure for the gut, bryt for focus, beat for active days and form for protein. All are vegan and soy free, all except core are gluten free, and for most of them the dosage is 1 to 2 servings per day. If you do not know where to start, soul is the natural first choice, and one product at a time for 30 days is the best way to find out whether it does anything for you. More guides are in our health guide, and an overview of the whole range is on the home page.