Suplemento em cápsulas para pré-treino, formulado com Citrulina HCl. Indicado para homens e mulheres, com apresentação prática para uso na rotina esportiva.
HydroNOx é um suplemento para pré-treino em cápsulas, formulado com Citrulina HCl e destinado a homens e mulheres. A apresentação em cápsulas é adequada para quem busca praticidade na rotina esportiva, sem a necessidade de preparar pó ou bebida.
O produto pode ser utilizado como pré-treino independente ou combinado à rotina de suplementação. A fórmula é não transgênica e sem glúten.
Siga as instruções da embalagem. A fonte informa o uso de 2 a 4 cápsulas 30 minutos antes do exercício.
O produto é apresentado em cápsulas, em um frasco.
A composição informada contém Citrulina HCl.
A embalagem contém 90 cápsulas.
| Marca | HydroNOx |
|---|---|
| Fabricante | Vireo Resources |
| Número de peça do fabricante | HNOX90CAP |
| Forma do produto | Cápsula |
| Ingrediente | Citrulina HCl |
| Quantidade | 90 cápsulas |
| Tipo de embalagem | Frasco |
| Categoria | Pré-treino |
| Atributos | Não transgênico; sem glúten |
| Dimensões do produto | 5,84 x 5,84 x 11,25 cm |
| Peso do produto | 91 g |
| UPC | 349597002838 |
| Número de itens | 1 |
As dúvidas que mais recebemos sobre compra, prazo e impostos.
Sim — original, novo e lacrado. Sem exceção.
Compramos direto das marcas, de distribuidores autorizados e de grandes varejistas dos Estados Unidos. Cada item é recebido, conferido e separado no nosso próprio centro de distribuição na Flórida antes de embarcar para o Brasil.
Não trabalhamos com réplicas, recondicionados ou fornecedores sem procedência — e é por isso que conseguimos garantir a origem de cada unidade que sai daqui.
Vem. E não existe outra origem possível: não mantemos estoque no Brasil.
Seu pedido sai do nosso centro de distribuição próprio em Margate, na Flórida, onde é conferido, embalado com proteção reforçada para o transporte internacional e despachado para o endereço informado na compra.
Sem intermediário, sem revenda no meio do caminho: da prateleira americana direto para a sua casa.
O prazo exato do seu CEP aparece no carrinho e no checkout, antes de você pagar.
Na média, a entrega acontece em 7 a 12 dias úteis após a aprovação do pagamento, divididos assim:
Nada de “aguarde 60 dias”. Você compra sabendo a data e acompanha cada etapa pelo rastreio.
Não. O preço que você vê na tela é o preço final.
Todos os tributos e encargos de importação já estão incluídos no valor da compra. Nós recolhemos, nós cuidamos do desembaraço — você não precisa fazer absolutamente nada.
Importante: se você receber SMS, e-mail ou mensagem pedindo pagamento de imposto para liberar a encomenda, ignore e não pague. A quitação é feita automaticamente pela nossa operação. Pagamentos por fora geram duplicidade e atrasam a liberação do seu pedido.
Frete grátis para todo o Brasil, sem valor mínimo de compra.
O valor que aparece no produto é o que você paga: sem frete na finalização, sem taxa de importação na entrega, sem surpresa.
No mesmo dia em que o pagamento é aprovado, ele entra na fila de separação.
A preparação e a expedição na Flórida levam, normalmente, de 1 a 3 dias úteis. Alguns itens podem exigir um tempo maior de reposição nos Estados Unidos — e, mesmo nesses casos, o prazo final de entrega informado na sua compra continua valendo.
Sim, do depósito na Flórida até a sua porta.
Assim que o pedido é postado, você recebe o código e o link de rastreamento por e-mail e WhatsApp. Também dá para consultar a qualquer momento na nossa página de rastreamento, usando e-mail, CPF ou número do pedido, ou em Minha Conta → Meus Pedidos.
A primeira movimentação pode levar até 48 horas para aparecer no sistema — é o intervalo normal entre a postagem física e a atualização do rastreio.
Sim. Nosso catálogo é atualizado diariamente com o estoque real nos Estados Unidos.
Se, em uma situação excepcional, o item ficar indisponível depois da sua compra, nossa equipe entra em contato em até 24 horas úteis com as alternativas — produto equivalente ou reembolso integral, o que você preferir.
Em nenhum cenário você fica sem resposta e sem o seu dinheiro.
É, e dá para verificar.
A Vitamin Shop é uma loja credenciada da rede ShopEx (ShopEx Global Operations LLC), empresa de e-commerce internacional que opera desde 2024 e responde por toda a operação logística dos pedidos — da compra nos Estados Unidos até a entrega no Brasil.
São milhares de encomendas já despachadas do centro de distribuição próprio da ShopEx, em 1856 NW 54th Ave, Margate, FL 33063, Estados Unidos. Endereço real, operação real, conferível.
No pagamento: ambiente criptografado (SSL), processado por gateway certificado PCI DSS. Os dados do seu cartão nunca ficam armazenados em nossos servidores. Pague com Pix ou em até 6x sem juros no cartão.
A gente resolve — e o custo é nosso.
Você tem 7 dias corridos após o recebimento para solicitar troca, devolução ou reembolso. Basta entrar em contato com o número do pedido e, se for o caso, fotos do item e da embalagem.
Analisamos em até 24 horas úteis e, quando a devolução é aprovada, enviamos um código de postagem gratuito: você não paga logística reversa. O estorno é feito na mesma forma de pagamento da compra.
Comprar aqui não te expõe a risco nenhum. O risco é nosso.
Porque a parte difícil da importação já está resolvida.
Importando sozinho, você garimpa fornecedor, paga em dólar com IOF, contrata frete internacional, torce para o site americano aceitar seu cartão, acompanha o desembaraço e paga o imposto de importação depois — sem saber o valor final até a conta chegar.
Aqui, você paga em reais, com o valor total fechado na tela, e nós assumimos cada etapa: compra na origem, conferência e embalagem no nosso centro de distribuição na Flórida, envio internacional, desembaraço, entrega no Brasil e suporte em português até a encomenda estar na sua mão.
O mesmo produto original. Sem o trabalho, sem o risco e sem a surpresa no final.
Jason Smith –
⭐⭐⭐ Clean Lab Quality and Easy Capsules, but 22 Servings Per Bottle Limits Value
Vireo Systems built a recognizable name around CON-CRĒT Creatine HCl by arguing that a hydrochloride salt bond allows for “micro-dosing” compared to standard monohydrate. With HydroNOx, they are running the exact same playbook on citrulline.The central pitch is efficiency: the marketing claims 2 g of Citrulline HCl delivers “300% increased nitric oxide support” and faster blood peaks compared to 6 g of standard L-citrulline. However, that relies entirely on an unpublished internal “study on file.” In sports nutrition, free-form L-citrulline already has high bioavailability because it efficiently bypasses liver breakdown. While adding an HCl group enhances water solubility, that salt bond also adds molecular weight, meaning a portion of each capsule is chloride rather than pure citrulline. Given that extensive exercise research points to 6 to 8 grams of L-citrulline as the gold standard for vasodilation and muscle pump, relying on an internal study to justify a 2-gram dose requires a leap of faith.The dosage logistics also alter the value proposition. The capsules themselves are standard-sized and easy to swallow, but the supplement panel lists a serving as 2 capsules for 1,000 mg (1 g). To hit the 2 g dose featured in the performance claims and graphics, you need to take four capsules before training. Taking four per session reduces this 90-count bottle down to just 22 workouts.The manufacturing pedigree is solid—produced in an SQF and NSF-certified facility by an established laboratory rather than an untraceable white-label repackager. At thirty dollars for only 22 full servings, however, you are paying roughly $1.36 per workout. By comparison, a 1 kg bag of bulk Citrulline Malate powder costs around forty-four dollars and delivers hundreds of clinical doses at a fraction of the cost.Verdict3 stars. Clean manufacturing from a reputable lab and manageable capsule sizes, but needing four capsules a day drops the bottle to just 22 workouts, making the cost per workout hard to justify against bulk powder.
Michael –
Love this for travel
Great alternative to preworkout, gives a noticeable boost without some of the jittery side effects. Effectiveness is the standout feature here, the citrulline HCl seems to genuinely support that muscle pump and blood flow feeling during workouts without the crash some preworkouts cause. Ingredient quality feels solid too, being non-GMO adds peace of mind for those mindful of what’s in their supplements. Tolerability is a real plus, it doesn’t come with the jitteriness or anxious energy that stimulant-based preworkouts often bring, making it easier to use consistently. Capsule format adds convenience as well, no need to mix powders or deal with mess, just take the capsules and go. Endurance benefits seem noticeable during longer training sessions, helping sustain performance rather than just an initial burst of energy. Value for money feels fair given the 90 count supply, offering a reasonable amount of servings for regular gym-goers. Overall a solid pickup if you want a stimulant-free way to support blood flow and endurance without the typical preworkout side effects.
Guy A. Verage –
Well-Designed Nitric Oxide Supplement That Focuses on Citrulline Science
What caught my attention here was the use of HydroNOx® Citrulline HCl rather than relying solely on standard L-citrulline or arginine. HydroNOx is specifically marketed as a form of citrulline designed to increase blood arginine levels efficiently, which is important because nitric oxide production depends on arginine availability. Research cited by the ingredient manufacturer reports faster conversion to arginine and higher peak arginine levels compared with standard citrulline.Most nitric oxide supplements are taken for improved blood flow, training endurance, vascularity, and muscle pumps. The science behind citrulline is actually stronger than many people realize. Multiple human studies have found that citrulline supplementation can support nitric oxide production, enhance exercise performance, and reduce perceived fatigue during training. While the exact benefits depend heavily on dose and individual response, citrulline is one of the better-supported ingredients in the sports nutrition category.Since this product is stimulant-free, there’s no caffeine rush, jitters, or crash. It’s designed to support circulation and performance rather than provide an energy boost.The capsules are easy to take, and I appreciate that the formula is Non-GMO and straightforward compared with many nitric oxide products that hide ingredients inside massive proprietary blends.My only reason for giving four instead of five stars is that I would prefer the label to provide even more detailed information about the clinically relevant dosing compared with the amounts used in published exercise-performance studies. When evaluating sports supplements, transparency is always a plus.Overall, this is a solid nitric oxide support supplement built around a promising citrulline ingredient. If you’re looking for improved blood flow, workout pumps, and endurance support without stimulants, this is a worthwhile option and one of the more science-focused formulas I’ve tried.
R. Guthrie –
Citrulline HCL capsules are just what I wanted
I have been putting L-citrulline powder into water and drinking it for years. I do it for exercise advantage and to keep my blood vessels relaxed and my blood pressure down. And I believed all these years that L-citrulline was the best precursor to arginine that there was. But this product says that citrulline HCL is better than the L-citrulline version by 300%! So, that’s pretty significant and I wonder why I didn’t know this. But now I can try these capsules and see how they do with my workout sessions and stationary blood pressure. The powder and water routine wasn’t bad, but taking capsules is far easier. Portable and just one step and one ingredient. The label says to take two to four capsules before workouts, so that’s quite a difference in dosage between two and four caps. And there’s 90 capsules in the bottle. So, 45 doses at two caps each. One thing is clear about L-citrulline and citrulline hydrochloride, and that is L-citrulline is far less expensive. But the science says you need three times more of it to even get to the point where it was 300% less effective than this product. So, this product is the real arginine precursor and L-citrulline is a distant second, even at massive doses. I haven’t taken any of this stuff yet, but I’m excited at the possibilities of what it will do for me compared to my normal L-citrulline routine. It seems to be priced reasonably.
Steven –
Great travel option for citrulline
I’ve been taking citrulline in my morning coffee now for about 2 years and it has been a complete game changer for my morning energy. I can literally feel it kicking in 20-30 minutes after consumption. There are a lot of things I’d give up before I give up my citrulline.The one problem that I’ve had with citrulline is the fact that I use it in powder form and it’s messy to use, and hard to transport, though I’ve continued to do just that. This makes a huge difference because it is in capsule form and transport, even when flying. Zero questions. Obviously, it’s a little more expensive to buy this way vs bulk, but you can’t beat the convenience.2 capsules come in at about 1000mg or 1 gram, which is about what I take. This bottle then means there’s about a 45-day supply.As with most capsules, there’s no flavor. The product is well packed and ready to go. This won’t replace my daily bulk routine, but it will find its way into my travel stack.
RG –
Better Workouts
Ordered HydronOx as I have been supplementing with L-citrulline for a long time at first I thought it was just like any other supplement but then I looked closer at the details noting how it is more efficient gram per gram compared to regular L-citrulline as an endurance athlete I was curious and good timing as my current L-citrulline supplement just ran out. Normally I use around 4-6 grams but seeing the claims went with only 2g.To my surprise I felt just as good if not better with a smaller dose of 2g citrulline HCL vs 4-6g of L-citrulline, I took them right before the start of my cardio session felt so good my legs didn’t burn was able to burn 800 calories in an hour even better took a 5 min break and was still able to do another 30 minutes same pace although these long cardio session are nothing new to me but I just felt way better overall, less tired, and could of gone longer definitely recommend.
Sean D –
Citrulline HCl formulation works great
I found the hydroNOx nitric oxide support capsules to be highly effective, and I really noticed a difference by having it in the Citrulline HCl format as opposed to L-citrulline that commonly comes with other nitric oxide boosters.The pills themselves were relatively small and easy to swallow without much more than a sip of water and a serving size of only two pills was an easy add to my routine.From a physical impact perspective, I noticed increased vascularity in my upper body lift, slightly better endurance and do plan to continue to use these pills when doing those types of workouts. I can’t comment on non-workout related impact of the nitric oxide, but it wouldn’t surprise me to see it have similar effects for those that are looking for that vasodilation experience in other parts of their life.
Billiam –
Performance Increase? Perhaps
I can’t tell if these are doing anything concerning driving performance during workouts but I do think they’re lowering my blood pressure just a little post exercise. I’m wondering what they’d do on a century ride – so far, I’ve been using them on 30 milers. I’m using them at the rate of 2 capsules before a heavy cycling workout. I haven’t had any ill effects but I’d say that if you have low blood pressure, you should be careful – be careful no matter what. Packaging is good and this seems to be a quality product. I think I’m in for continued use and propose there’s good value here.