B-Complex Oral Spray is a vitamin B complex supplement that helps with energy, mood and immune health for daily vitality and resilience all day long. Vegan-friendly orange flavour helps make daily intake a little nicer. Eight B vitamins support energy, mood and immune health. The brand upholds vegan standards and quality.

Available Sizes & Variants:

25ml B-Complex Oral Spray - Orange flavour gives a handy daily dose.

Benefits & Features:

• Enhances energy and mood with a full spectrum of eight B vitamins.
• Sublingual delivery helps absorption for folks with sensitive digestion.
• Reduces fatigue and supports cognitive function, especially during busy or stressful days.
• Immune support comes from the B6, B12, and folate trio.
• Vegan friendly, sugar free orange flavour, and suitable for everyday use, this spray offers a convenient, discreet way to top up your B vitamin intake without added sugar.

Osavi's B-Complex Spray uses all eight essential B vitamins delivered under the tongue for fast absorption. The key active blend includes thiamine, riboflavin, niacin, B6, folic acid and B12 in methylcobalamin form, plus biotin and pantothenic acid to round out the complex. The orange flavour comes from concentrated orange juice and the sweetness from xylitol, with no sugar or common allergens like gluten, dairy or soy. It slots neatly into daily routines, alongside a vitamin d supplement or even probiotics if you use them. For those who take vitamin b12 supplements, this spray provides methylcobalamin.

Water, thickeners: xylitol (30%) and xanthan gum, concentrated orange juice (8%), pantothenic acid (calcium D-pantothenate), niacin (nicotinamide), vitamin B6 (pyridoxine hydrochloride), vitamin B1 (thiamine mononitrate), natural orange flavouring, preservative: potassium sorbate, folic acid (pteroylmonoglutamic acid), vitamin B2 (riboflavin 5’-sodium phosphate), biotin (D-biotin), vitamin B12 (cyanocobalamin).

• GTIN: 5904140000000
• Manufacturer: Osavi
• Categories: In stockNew ArrivalsOsavi
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Spray directly under the tongue in the morning. Shake well before each use. For the first application, press 3-4 times to activate the pump. One or two capsules – or as recommended by your healthcare professional – in the morning

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin B1 (Thiamine)

Vitamin B1, or thiamine, is a water-soluble nutrient that's essential for normal energy metabolism and nervous system function.

This form is often used in dietary supplements to help with efficient utilisation of carbohydrates and to support the maintenance of healthy nervous system activity. It is usually supplied in a ready-to-use oral form and can be found in multivitamin and B-complex products, typically alongside other B vitamins to support overall metabolic health.

What Does Vitamin B1 Do?

Vitamin B1 contributes to energy-yielding metabolism and supports the proper functioning of the nervous system, in line with EFSA-recognised nutrient functions.

It is involved in carbohydrate metabolism and helps maintain normal cognitive and psychological function as part of a balanced intake. The vitamin also supports immune function as part of overall nutritional status.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Osavi is chosen for its dedication to a vegan-friendly, sublingual B-complex blend, delivered as a easy orange-flavoured spray. This approach lines up with Welzo's focus on accessibility and simplicity, supporting our aim to offer vitamins in a delivery format that supports daily intake. The product design concentrates on eight essential B vitamins, including folic acid, B12 and B6, with a sugar-free, dairy-free and gluten-free profile that suits diverse lifestyles. Our medical team reviews such formulations as part of our medical team and our thorough testing protocols, ensuring the brand adheres to Welzo’s quality expectations while maintaining user-friendly delivery. our thorough testing protocols underpin our confidence in Osavi’s manufacturing quality and ingredient integrity.

The brand’s product design emphasises purity and practical dosing, aided by sublingual absorption considerations that may boost convenience for users. This brand stands out in our assessment for its focus on vegan-friendly composition and a formulation that supports daily energy, mood and immune health support as reflected in the product’s intended use. We recommend Osavi B-Complex Oral Spray as a strong fit for this supplement category because it aligns with Welzo’s evidence-based, user-centred quality.