What is the difference between HE and regular detergent?

The main difference is how much it suds. HE, or high-efficiency, detergent is specially formulated to be low-sudsing so it works in machines that clean with very little water. Regular detergent produces far more suds, which is fine in old high-water washers but causes problems in low-water HE machines. HE detergent is also often more concentrated. In practice, you should use HE detergent in any HE washer, and regular detergent only in older non-HE machines.

Can you use regular detergent in an HE washer?

You should not. Regular detergent makes too many suds for the small amount of water an HE washer uses, and those excess suds can prevent proper rinsing, leave residue on clothes, cause the machine to run extra cycles, and over time contribute to odor and buildup or even error codes. If you only have regular detergent, use a very small amount as a one-time exception, but for regular use always choose an HE-labeled detergent in an HE machine.

Can you use HE detergent in a regular washer?

Yes, HE detergent works fine in a standard top-load washer. It simply produces fewer suds, which does not harm anything and still cleans effectively, though you may not see the sudsy lather people associate with clean laundry. Because HE detergent is often concentrated, follow the dosing on the label so you do not under-dose. Using HE detergent in a regular machine is a safe, common choice, especially since most detergents sold today are HE-compatible.

How do I know if my washer is HE?

Look for the HE symbol, a stylized circle with h and e, on the machine, usually near the controls or detergent dispenser, and check the manual. Front-load washers are almost always HE, and many modern high-efficiency top-loaders without a center agitator are too. Older top-load washers with a tall center agitator that fill with a lot of water are typically non-HE. When in doubt, the manual or the manufacturer's website confirms it.

Do you use less HE detergent than regular?

Usually yes, because HE detergents are often concentrated and HE machines use little water, so a small dose goes a long way. Overdosing is a common mistake that leaves residue and causes buildup and odor in HE washers, so measure carefully and follow the fill line on the cap or the pod count on the label. When you switch to a concentrated HE detergent, resist the urge to pour the same amount you used with an old, weaker formula.

HE vs Regular Laundry Detergent: What Is the Difference?

Written & researched by Derek Holt Home & Appliances Editor

Updated October 2026

Three-quarter view of a person folding clean laundry in a sunlit laundry room, in soft early-morning light

Affiliate Disclosure

Some links on this page are affiliate links. As an Amazon Associate, we earn from qualifying purchases — at no extra cost to you. We do not buy, test, or physically handle the products we cover; our rankings come from aggregated owner reviews, ratings and expert consensus. Commissions never change our verdicts. How we rank · full disclosure.

HE, or high-efficiency, laundry detergent is specially formulated to produce very few suds so it works in modern washers that clean with little water; regular detergent makes far more suds that a low-water HE machine cannot rinse away properly. Use HE detergent in any HE washer — putting regular detergent in one causes residue, poor rinsing and long-term buildup and odor. HE detergent works fine in a regular washer too, so when in doubt, HE is the safer universal choice. It is mostly a suds question, driven by how much water the machine uses.

What is the real difference?

The difference is suds level, tied to how much water the washer uses. HE machines — nearly all front-loaders and many modern top-loaders without a center agitator — clean with a small amount of water, so their detergent must be low-sudsing to rinse clean. HE detergent is engineered exactly for that, and is often more concentrated. Regular detergent produces heavy suds suited to older washers that fill with lots of water, but that same foam overwhelms an HE machine's low water level. The formulas differ chiefly in how much they lather.

Low-angle view of a person folding clean laundry in a sunlit laundry room, in warm late-afternoon light

HE vs regular detergent at a glance

	HE detergent	Regular detergent
Suds level	Low, controlled	High
Made for	Low-water HE washers	Older high-water washers
Concentration	Often concentrated	Standard
In an HE washer	Correct choice	Causes residue, over-sudsing
In a regular washer	Works fine	Works fine
Dose	Small; measure carefully	Larger

Three-quarter view of a person folding clean laundry in a sunlit laundry room, in warm evening lamplight

What happens if you use the wrong one?

Using regular detergent in an HE washer is the mistake that causes trouble. The excess suds cannot rinse out in the machine's small water volume, leaving residue on clothes, forcing extra rinse cycles, and over time contributing to buildup, musty odor and sometimes error codes. Going the other way is harmless: HE detergent in a regular washer just makes fewer suds and cleans normally. So the safe rule is simple — HE detergent goes in everything, and regular detergent stays out of HE machines.

How much should you use?

Less than you think, especially with HE detergent. Because HE formulas are often concentrated and HE machines use little water, a small dose cleans effectively, and overdosing is one of the most common causes of residue and odor buildup in high-efficiency washers. Measure with the cap fill line or count pods per the label rather than pouring by eye. If you have hard water or heavily soiled loads you can nudge the dose up slightly, but start with the recommended amount.

Over-the-shoulder view of a person folding clean laundry in a sunlit laundry room, in soft early-morning light

Which should you use?

If you have an HE washer — most front-loaders and many newer top-loaders qualify — use an HE-labeled detergent, and never regular detergent for routine washing. If you have an older top-loader with a center agitator, either works, but HE detergent is a fine, widely available choice. When you are unsure of your machine or just want one detergent that suits any washer, buy HE. Check for the HE symbol on your machine and follow the dosing on the label.

Where to go next

Ready to choose a product? Our picks for the best laundry detergents rank current HE-compatible options on the ratings and complaints owners report, and the best laundry detergent for hard water covers a common problem area. Fighting odor? See why a front-load washer smells musty. Everything sits under the cleaning and laundry hub.

We never buy or physically test the products we rank — our recommendations come from aggregated owner reviews and expert consensus, and the method is on how we rank.