10 Best Fiberglass Shower Cleaners Reviews in 2023


Are you considering a deep clean of your fiberglass shower? If so, it would be wise to include a fiberglass shower cleaner in your upcoming cleaning plan for a more efficient process.

Over time, fiberglass showers get dirty because of the soap scum, mildew, mold, sticky dirt, hard water detergent water, etc. Sometimes the dirt seems permanent and make your fiberglass shoddier, you need to remove them to have a clean and hygienic environment in the house. it is where shower cleaners come into action and help you to get a sparkling clean area.

Keeping the same fact in mind, we are presenting you 10 best shower cleaners with reviews and buying guide. Most of them work under soft as well as hard water conditions. So, if you want your fiberglass shower to look and feel great, do not miss this comprehensive post about the best fiberglass shower cleaners on the market.

Top Best Fiberglass Shower Cleaners Today

Check how to clean a fiberglass shower?

  1. Our Top PickBring It On Cleaner
  2. For Industrial PurposeBio-Kleen M00605
  3. Most Effective – Weiman Bath Tub Cleaner
  4. Cleaning without Scrubbing – Weiman Bath Tub Cleaner
  5. Most Eco-Friendly Stain Remover – RMR-86 Instant Mold Stain & Mildew Stain Remover
  6. Best Hard Water Stain Remover – Bio-Clean
  7. Best Soap Scum Remover – Rejuvenate Scrub Free
  8. Best Multipurpose Scrubber – Drillbrush

1. Bring It On Cleaner

If you want easy cleanup of your fiberglass shower, we recommend Bring It On Cleaner. Leave the oxygen bleach cleaner on the surface to lift out old stains and rinse it off after some time. Repeat treatment will never be required. It has a tag line, It really works. And it does really work.

This cleaner from Bring It On can quickly remove stains and spots. Whether it is a fiberglass shower, glass shower, or a regular shower, Bring It On works like a medicine. It can remove any type of dirt, including tough blemishes. Its makers are so confident about the product that they offer a money-back guarantee.

You must be wondering what is so special about the cleaner that it is topping the charts? Bring It on cleaner contains oxygen bleach which does the regular work of removing mildew and molds but also deodorizes and disinfects the area. Apart from oxygen bleach or hydrogen peroxide, this cleaner also has jeweler’s abrasives that effectively remove hard water stains.

Where to use it?

This cleaner removes old spots and stains on fiberglass, vinyl doors, glass doors, grouts or tiles and gives a refreshing mint aroma. Both the cleaner and the smell it releases are chemical free and safe for health, even for kids and pets.


Versatile, can clean all shower types

No chlorine or any other harmful chemicals

Easy to use


Unable to remove haze from glass doors

2. Bio-Kleen M00605 Fiberglass Shower Cleaner

M00605 was created to remove algae, scale, chalking, rust, lime, oxidation, corrosion, soap scum and yellow stains from fiberglass, RV fiberglass, and all the other acid resistant surfaces like metals, boat hulls, tiles, porcelain, and grouts. Apart from hulls, fiberglass, and metals, you can also use M00605 to clean tires, rims, bathtubs, sinks, toilet seats, shower stalls, swimming pools, and stainless steel fixtures. An easy solution for both commercial and residential cleaning.

Ideal for industrial and commercial purpose, the M00605 fiberglass cleaner from Bio-Kleen gives sparkling clean results on hulls and RV fiberglass, so it is best for ship cleaning and other marine activities.

Where to use it?

Whether it is used on metal or anode, M00605 helps to remove rust and provides the material with a shiny look, especially on boat hulls where it easily removes algae, chalking, rust, line, and scale. It also removes chalking, yellowing, and oxidation from fiberglass or any other glass door or wall to give you a bright and clean surface.

M00605 dissolves and penetrates quickly to give you a sparkling clean area. Whether you want to use it manually or inside an automatic washing spray, this cleaner has excellent results on both.

Precautions: None

The liquid is free from aerosol and any other toxic agents, so you can use it around seniors, children, and pets. On top of that, this cleaner is a biodegradable item, so it will not cause any harm to the environment either.


Quick penetration and rapid cleaning

Excellent cleaning results



Cannot remove black streaks from a surface

3. Weiman Bath Tub Cleaner

This cleaner from Weiman gets the job done without much effort, meaning you do not have to spend much time on scrubbing the surface. The best part is it never leaves any marks on the surface.

This is a heavy-duty cleaner from Weiman that removes soap scum, lime scale, hard water spots, rust, and other stains without much scrubbing. It is a non-abrasive cleaning agent, so it keeps the texture and color of the cleaning surface intact.

Where to use it?

Whether you want to clean fiberglass, shower doors, spas, vanities, showers, tiles, or hulls, this product from Weiman removes any residue and delivers excellent cleaning results.

Use this cleansing agent on a dry-cleaning surface directly from the container, or you can also use a sponge or dry cloth to apply it. Allow the liquid to penetrate for up to 5 minutes. Use a non-abrasive brush, sponge or cloth to wipe the area and rinse off using water. For extra shine, dry the surface using a paper towel or any dry material. No fingerprints, no smudges, no spots, you will get a clear, shining surface.


You cannot use this cleaner on a painted surface or any magnesium alloys or aluminum wheels. It contains 2-Butoxyethanol, so it is harmful to the skin and eyes. In the event of eye contact, wash your eyes out with cold water for 15 minutes. Keep this product away from children and if accidentally swallowed, consult a doctor immediately and in the meanwhile drink lots of water.


Powerful and effective



Not effective enough on a slip-free fiberglass tub

Contains harmful chemical

4. RMR-86 Instant Mold Stain & Mildew Stain Remover

RMR-86 is an expert in simple and easy removal of stains all without scrubbing or brushing. It works in the house and on boats, so it is worth a try.

Do you like scrubbing while cleaning the surface? We are sure none of us like killing our arm while getting rid of stains. Some of the old stains are so stubborn that you have to use a wire brush, which again does not sound exciting. Due to the same reasons, disaster restoration specialists created RMR-86, which gives you a mold and stain-free surface without any scrubbing.

RMR-86 lifts all the stains and spots from a variety of surfaces without scrubbing. As per the manufacturers, the stains will disappear in front of your eyes, leaving a clean surface.

Where to use it?

This stain remover is safe to use on most surfaces, including fiberglass, wood, tiles, concrete, boat vinyl, grout, and flooring. However, a spot test is recommended. Spray a small amount of the remover on an area or object that needs to be cleaned and wait for 24 hours. If you do not see any damage or discoloration on the surface, then you can use RMR-86 on it.


  • Use the remover in a well-ventilated area
  • Only for industrial use


Can be used prior to painting any surface

Quick stain removal with 15 seconds

Cleans the area without scrubbing


The hard smell makes it difficult to use inside the house

Cannot be used as a mold inhibitor

5. Bio-Clean: Eco-Friendly Hard Water Stain Remover

Bio-Clean stain remover is one of the best ways to restore the surfaces with their original luster. Removes all kinds of spots or stains from almost any surface. Similar to Bring IT On, Bio-Clean always works.

Created to keep your shower and fiberglass clean, this stain remover from Bio-Clean is easy to use and, most importantly, safe for everyone. We can state this confidently because this is not the only product or cleaner from Bio-Clean. The fairly well-known brand has already manufactured many home cleaning solutions that give effective results.

Where to use it?

This residential and industrial cleaner removes all spots and stains, even old and stubborn ones. In the house, you can use it to clean fiberglass, shower doors, BBQs, tiles, steel, pools, toilets, sinks, marble, etc. Commercially, you can use it to clean boats, auto parts, metal, brass, vinyl, steel, etc.


There are no chemicals used in this cleaner and it is biodegradable. As there are no chemicals involved, there is no irritating smell when cleaning a shower or a boat.


Safe and eco-friendly

Can be used for both residential and industrial purposes

100 percent money-back guarantee within 60 days


May leave scratches on the glass

6. Bio-Clean: Hard Water Stain Remover

This incredible cleaner removes stains from almost anything and everything. Also, it is safe to use with kids and pets. So, you can try this cleaner in your house or building as it also comes with a 60-day money-back guarantee.

This is one of the safest and most effective ways to clean hard water stains, this remover from Bio Clean overshadows any other cleaner and gives you a sparkling clean surface. Once cleaned with this remover, any surface would look spotless, shining, and lustrous. Whether it’s a regular hard water stain or an old mineral spot that has been there for years, this cleaner will remove it with unmatched strength.

Where to use it?

This stain removal can be used for both residential and commercial purposes. Professionals can use it in hospitals, manufacturing plants, and hotels because it can clean stains caused by mineral residues, including phosphorous, calcium, lime scale, iron, rainwater, and acid.

If you want to use this stain remover in your house, you can use it on fiberglass, shower doors or pans, and shower tubs. It also removes stains from brick, concrete, tiles, and grout. Apart from removing stains, it can also remove rust from metal objects, you can call it an all-round cleaner.


This abrasive stain remover does not have a chemical compound or bad smell. It is biodegradable and hence creates no harm to the environment. So, all you get is an amazingly cleaned surface and refreshed environment.



Environmentally friendly

Removes mineral stains


Not very effective on steel

7. Rejuvenate Scrub Free Soap Scum Remover

This remover gives you the ability to clean a surface without any streaks or scratches, that also within a few minutes. So, give it a try to make your fiberglass shower look new.

This non-abrasive, bleach-free soap scum remover from Rejuvenate is specifically designed to clean fiberglass, glass showers, plastic chrome, decorative stones, tiles, etc., without scrubbing. Use this spray on any surface you want to clean and leave it for three minutes. Once you rinse off with water, all you will see is a streak-free surface.

Where to use it?

Fiberglass, bathrooms, shower, bathtub, kitchen slab or countertop, tiles, and grout are the places where this scrub-free remover works well. This cleaner is so effective that after the first trial we are sure you won’t use any other stain remover. These are the reasons why it has been awarded the best cleaner by Better Homes and Gardens and Family Circle.


This water-based Greenguard Gold Certified cleaner has a chemical and smell-free formula. This certification means that this cleaner has fewer chemical emissions. It also improves the air quality of the cleaning area and is safe to be used inside healthcare facilities or schools.

As the liquid is bleach free, it does not harm the surface of any of the objects being cleaned, including plastic, chrome, ceramic tiles, fiberglass, or bathtubs.


Chemical free

Easy and quick to use

Scrub-free application


Terrific smell if used in a less ventilated area

8. Drillbrush All Purpose Power Scrubber Cleaning Kit

Designed to be used with a cordless driller, the kit from Drillbrush gives you the desired cleaning results in half of the time as compared to hand scrubbing. Whether it is the surface, tiles or any other object in the shower, you will be able to clean all of them using these different sized brushes.

This cleaning kit from Drillbrush contains three brush combo kits that can fit any cordless drill. Made of high-quality nylon bristles, the brushes are perfect for cleaning and scrubbing a variety of materials.

Where to use it?

Medium stiff brushes are scratch free and can be used to clean fiberglass, linoleum, porcelain, bathtubs, sinks, and shower doors. All three brushes are of different shapes and sizes and give you easy cleaning for all the corners, surfaces, and objects. When we say shape and size, we are talking about the length of bristles, which varies for all three brushes. So, you will be able to clean the bathroom area without spending much time or effort.

Brushes have a quarter inch quick change shaft that is plated with zinc/nickel. Due to the coating, the shafts are corrosion free and durable. The manufacturers give you a 90-day trial period with the brushes, so if you are not satisfied with the performance, you can ask for a refund.


Medium stiff bristles to leave a scratch free and clean surface

Quick change shaft

Money-back guarantee


Using the brushes with a massive drill can be sometimes tricky, especially in tight to reach corners

9. Gel-Gloss TRKIT-GA12.DBL Kitchen and Bath Polish and Protector

Classically designed but a modern piece of furniture with light grey linen upholstery that fits any house decor and looks good in the center of the bedroom or when placed against the wall. This product has robust and sturdy wooden slats that’ll ensure extended use over a long period of time.

Here comes a polish and protector from renowned brand TR industries which has been manufacturing polishes, cleaners, waxes, and other best bathroom cleaning products for more than 85 years now. With unique formulas, products from this brand provide fast and effective cleaning results.

The Gel-Gloss polish and protector is specially made to clean fiberglass, marble vanities, and kitchen surfaces. The easy to apply aerosol can be used to clean all the surfaces in the bathroom and kitchen.

This scratch-free formula of Gel-Gloss has a unique composition that cleans the surface from hard water spots, light scratches, and oxidation. Apart from restoring luster, this cleansing agent also protects surfaces from future blemishes.

Where to use it?

It is recommended to be used on Corian, ceramic, porcelain, acrylics, and stainless steel surfaces.  So, you can use this polish on bathtubs, fiberglass, showers, kitchen slabs, countertops, sinks, vanities, spas, and ceramic cooktops.

This product comes in a pack of 12 ounces each, so it is a money saving deal that will enable you to clean and protect most man-made surfaces.


  • Not to be used on natural stones


Polishes and protects the surface

Removes light scratches


Cannot improve stubborn oxidation

10. Star Brite Ultimate Fiberglass Stain Remover

Due to its sticking property, this cleaner is perfect for vertical surfaces. It gives you excellent cleaning results without much effort. Overall, this is a great stain remover for both residential and industrial use.

Our tenth entry from Star Brite has “ultimate†in its name and it leaves up to it. This fiberglass stain remover sticks on the cleaning surface and clings to the spots to give you maximum cleaning.

This stain remover covers all the spots as well as stains where it is applied and dissolves them. Due to this feature, this remover is effective on yellow waterline stains, dried food liquid or meat blood, rust, and other blemishes. On top of that, you will not have to look for a brush or stress your arms, because this cleaner does not require any scrubbing.

Where to use it?

This remover effectively cleans fiberglass, painted surfaces, vinyl materials, rubber, plastic, upholstery, and bolsters. The formula will not harm upholstery or vinyl surfaces. You can also use it while cleaning vinyl materials and metals on boats.


This cleaner is free from caustic acids that can be dangerous to fiberglass. However, if you are going to clean a large area, we advise you perform a spot test. Spray the ultimate remover on a small area and wait for any reaction. If you see any adverse effects on the surface, do not use it.


Maximum cleaning power due to extra clinging time

Effectively removes yellow water stains


Stubborn stains need several applications

Not effective on hulls

Buying Guide for Fiberglass Shower Cleaners

Every family member visits the shower twice or three times a week, if not more. So, it is vital to keep the area clean and hygienic. A shower cleaner can be the immediate solution to keep the shower clean and hygienic, it will not only remove soap scum and hard water stains but also take care of bacteria, mildew, and mold. Hence, you should choose the right fiberglass shower cleaner that can give you a well-maintained washroom.

Follow the hints above to buy the appropriate cleaner for your house, boat, or factory.

Cleaning Surface

The first thing that you should consider is the area or object that requires cleaning. There are tiles and glass that can be damaged by chemical-based harsh cleaners. Such stain removers will remove the spots but leave a thin film that will appear dull and discolored. So, always read the description for the cleaner and match it with the objects that need cleaning.


A soft scent or smell is not typically irritating for anyone in your family, including kids, seniors, or pets. So, look for a natural product that produces fewer fumes. A cleaner with a mild aroma is considered safe for household cleaning tasks.


To clean some of the stubborn soap scum or hard water stains, you may need a scrubbing brush. However, powerful stain removers can dissolve stains and grime, so you can get a clean surface without scrubbing. Look for a cleaner that can do a great job, but without the scrubber trouble.

Environmentally Friendly

As we discussed earlier, natural cleaners are safe to use around kids and seniors. Similarly, they are also less harmful to the environment. These are both valid reasons to look for a cleaner made with biodegradable substances.

Frequently Asked Questions (FAQs)

Will shower cleaners kill spiders?

No, you have to use vinegar to get rid of them.

Which shower cleaner is the best?

A cleaner or stain remover that smells nice and cleans all kind of stains and blemishes from all types of surfaces without harming the environment can be considered the best shower cleaner.

What is the best shower cleaner for soap scum?

Bio-Kleen M00605, Weiman Cleaner, and Rejuvenate scum remover are some of the best cleansing agents for soap scum.

What is the best shower cleaner for mold?

Bring It On cleaner and RMR-86 are the best mold cleaners, both of them are mentioned in our list.

What is the best shower cleaner for tiles?

Bring It On cleaner is the best cleaner for tiles. However, all the other stain removers mentioned on this list are capable of cleaning tiles. Only the last two entries are not as effective.

Final Words

If you have a fiberglass shower in your house, then you must be aware of the difficulties you face while cleaning it. It looks stylish and fancy but keeping it that way is the real task. This part of the cleaning cannot be done alone, you need an ally. That is why we have described the ten best fiberglass shower cleaners.

Most of the cleaners and stain removers described above can remove water spots, soap scum, and all other harmful microbes. Choose any one of them depending on the cleaning surface and preferences.

You may also love to read: 10 Best Bathroom Faucets Review