YAZIYIR Series 3 21B Replacement Shaving Heads 2-Pack — Silver Hypo-Allergenic Foil, Restores 99% Performance

YAZIYIR 2 Pack Series 3 21B replacement shaving heads are compatible replacements for Braun S3 models, delivering hypo-allergenic silver foil and restored cutting performance.

These replacement heads are built to restore the cutting efficiency of older Series 3 shavers without buying a new unit. Manufactured with a silver hypo-allergenic foil and precision inner cutters, the YAZIYIR set aims to return up to 99% of the shaver's original performance while minimizing irritation for sensitive skin. The two-pack gives you a spare head for staggered replacement or for use on a second shaver.

How do these replacement heads improve my daily shave?

Swapping in fresh foils and cutters reduces tugging and increases blade contact with hair, which shortens shaving time and improves closeness. The hypo-allergenic silver foil is gentler on sensitive skin and the design helps prevent bumps and irritation.

• Restores up to 99% of shaving performance.
• Silver foil reduces friction and irritation.
• Bump Prevent Technology reduces nicks and red spots.
• Two heads let you replace regularly without delay.

Which Braun models are these Series 3 21B heads compatible with?

These replacement heads are designed to fit a wide range of Braun Series 3 models so you can use them on many older shavers. Compatibility covers numerous 300, 301, 304, 305, 308, 309, 310, 320, 330, 350, 360, 370, 380, 390 and similar model designations in the Series 3 family.

• Compatible with Braun Series 3 shavers including 3010S, 3040S and 3000S models.
• Fits other listed Series 3 variants like 3020S, 3030S, 3050CC.
• Works with both corded and cordless Series 3 units using the same head mount.
• Check your shaver’s head part number (21B/21S series) before purchase.

How long do replacement heads last and when should I change them?

Head life varies by usage, hair type, and maintenance, but swapping heads yearly keeps peak performance and hygiene. Routine cleaning, drying, and occasional lubrication extend life, while a yearly replacement prevents dullness and reduced lift that increase shaving time.

• Recommended replacement interval: about every 12 months.
• Cleaning after each use prolongs foil and cutter life.
• Replace sooner if you notice tugging, noise, or uneven cutting.
• The two-pack provides an immediate spare for scheduled rotations.

Are these replacement heads safe for sensitive skin and easy to install?

The YAZIYIR heads use a hypo-allergenic silver foil engineered to reduce allergic reaction and skin irritation. Installation is straightforward: pop off the old head, align the new head on the shaver, and press until it clicks into place—no tools required.

• Hypo-allergenic silver foil for reduced irritation.
• Tool-free snap-fit installation in seconds.
• Designed for smooth gliding and fewer red spots.
• Works well with regular cleaning routines for best results.

Who is this for? This 2 pack is ideal for anyone who owns a Braun Series 3 shaver and wants to restore close-cutting performance without replacing the whole shaver. It's suited to users with sensitive skin who prefer hypo-allergenic materials, those who shave frequently and need a fresh head schedule, and shoppers looking for an affordable, ready-to-install replacement. If you want to keep a trusted shaver working efficiently and comfortably, this YAZIYIR set offers an easy, cost-effective option.