10 Best Headstone Cleaner 2025 in the United States

Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover is designed as a gentle yet effective outdoor cleaner that works on various surfaces including wood, concrete, vinyl, and metal. While it’s not specifically marketed for headstones, its ability to remove moss, mold, and algae without scrubbing or rinsing makes it a convenient option for cleaning stone monuments. Because it works gradually with rain and wind, green stains often clear within a couple of weeks, but tougher black or older stains can take several months to fade, which might require some patience.

Its formula is unscented and fragrance-free, which is good for users sensitive to strong smells, and it does not require harsh chemicals or power washing, reducing the risk of damage to delicate stone. Users mix it with water and spray on a dry surface, then leave it alone, offering ease of use and low physical effort. Since it requires multiple applications over time for deep stains, it’s less suited for someone needing immediate results.

This product provides a user-friendly, low-maintenance option suitable for gently removing outdoor biological stains from a variety of surfaces, including headstones, though its slow action might be a downside for some.

The Therapy Granite Cleaner Kit is designed primarily for natural stone surfaces like granite, marble, quartz, and slate, making it a suitable option for cleaning headstones made from similar materials. Its plant-based, neutral pH formula ensures it is gentle and safe for both users and stone, reducing the risk of damage during regular cleaning.

The kit includes a microfiber cloth that helps achieve a streak-free, glossy finish, enhancing the stone's appearance without leaving residue. It effectively removes grease, oil, and grime, which supports daily maintenance of headstones exposed to outdoor elements. The product is tailored toward indoor stone surfaces like countertops but can also support gentle, everyday upkeep of headstones made from common stones like granite or marble.

This cleaner offers ease of use and a polished look, though it may not fully replace specialized outdoor or heavy-duty stone cleaners for tougher stains such as moss or lichen on headstones.

The Granite Gold Daily Cleaner Refill is designed primarily for natural stone surfaces like granite, marble, travertine, and quartz, making it suitable if your headstone is made of these materials. It effectively removes grime and dirt without leaving streaks, thanks to its pH-balanced, residue-free formula that is safe for food-prep surfaces and free of harsh chemicals like phosphates and ammonia. Its light citrus scent adds a fresh touch without being overpowering.

The cleaner is easy to use with a ready-to-spray bottle or refill option, which helps reduce waste. This product is not specifically marketed as biodegradable, which might be a concern if you prefer eco-friendly options for outdoor use. While it is safe and gentle on stone, it may not tackle very tough or aged stains as aggressively as specialized headstone cleaners.

It makes a good choice if you want a gentle everyday cleaner for natural stone headstones and surrounding surfaces, balancing ease of use and safety, but for heavy staining or other stone types, you might need something stronger or more tailored.