Naughty Boy Prime Flexin helps you move more easily by supporting joints and cartilage, thanks to a thorough mix of clinically proven ingredients and a brand with open labelling. It blends a focus on everyday mobility with a heritage of quality you can rely on, honestly.

Available Sizes & Variants:

30 packets – daily sachets for a month.

Benefits & Features:

• Helps joint integrity with cartilage building blocks to keep you moving.
• Encourages joint lubrication for smoother movement day by day.
• Key ingredients like UC II collagen and omega 3 fish oil team up to support flexibility and comfort by tackling tissue health and inflammatory responses.
• Regular use supports lasting joint function, keeping mobility through busy days.
• With full label transparency and branded ingredients such as Aquamin, ApresFlex, and BioPerine, this formula seeks to deliver noticeable improvements while keeping trust high overall.

Naughty Boy Prime Flexin is a UK based brand known for open labelling and high standards of quality. This joint health blend uses branded ingredients such as Aquamin, ApresFlex and BioPerine to support mobility and comfort, with Aquamin described as a red algae mineral complex linked to improved mobility and reduced stiffness in studies published in Nutrition Journal in 2009. The formula targets joint structure, lubrication and inflammation, helping you move with more confidence day to day. This isn’t a magnesium glycinate, probiotic, or vitamin d supplement.

Glucosamine, Chondroitin, Cissus, Collagen, Aquamin, Omega 3 (1000mg), CuruPrime, ApresFlex, BioPerine, Vitamin C (1000mg).

• GTIN: 658238818869
• Manufacturer: Naughty Boy
• Categories: Naughty BoySports Supplements
• 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.

Consume the contents of 1 pack (4 supplements) daily, best taken with a meal. Store in a cool, dry place, away from direct sunlight and moisture. Keep out of reach of children. Do not exceed the recommended daily dose. If you are pregnant, breastfeeding, taking any prescribed medication, or have any medical condition, please consult a healthcare professional before taking any supplements.

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

Glucosamine is an essentially natural amino sugar used as a building block for cartilage and connective tissue, supporting the structural parts of joints. It's commonly used as a supplement to aid with daily joint health and movement.

This ingredient is a broadly recognised option for joint support and is frequently sourced as a daily supplement in a form fit for daily use, helping to maintain regular cartilage function and tissue integrity.

What Does Glucosamine Do?

Glucosamine helps to maintain cartilage structure and plays a role in helping support joint function, contributing to normal joint movement. Its action is described in relation to cartilage formation and integrity within trusted study contexts.

This function aligns with EFSA and NHS talks on supporting regular cartilage and joint structure, highlighting glucosamine's role within a broader joint health approach. This supplement uses Glucosamine as a key nutrient to assist with daily mobility and comfort.

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

Naughty Boy is our chosen partner for Flexin thanks to a trusted UK-based heritage and a clear commitment to ingredient transparency. This brand has built a reputation around using branded, clinically researched ingredients and a labelling approach that prioritises clarity for consumers, which aligns with Welzo’s emphasis on traceability and reliability. Our team reviewed Naughty Boy’s sourcing philosophy and accessibility of information, and the emphasis on well‑documented ingredients stood out in a crowded market. This confidence is reinforced by the brand’s alignment with UK and EU supplement standards, reflecting a disciplined quality mindset that Welzo values.

This brand was evaluated by our team of medical experts for compliance with our quality assurance criteria, focusing on manufacturing integrity, ingredient identity, and product safety. The result is a product‑brand pairing that delivers transparency, robust formulation, and a solid product fit for joint health support. Naughty Boy Flexin is a natural match for Welzo’s standards and our customers seeking dependable, well‑documented supplementation.