You thought you had rinsed your whole face, but just before you reach for the towel, you see white foam at the hairline. Even if you rinse again, the foam shows up in the same spot once you put your bangs back. Before simply rinsing more times, check the places hidden by your hair or headband, and where the water is actually reaching.
This article covers rinsing, focused on the hairline, after using a face wash that is rinsed off with water or lukewarm water. The steps for makeup removers and wipe-off-only products are different. It is not a method for judging that every rough or white patch on the skin is leftover face wash.
1.Sort where the foam remains: hair, skin or fabric

When you notice foam, first stop your hand from reaching for the towel. In the mirror, check from what you can see whether it is on the skin of your forehead, tangled in short hairs, or on the edge of the headband. Even if your cheeks look clean, water has not necessarily reached the outer edge hidden by your hair.
Instead of trying to look everywhere at once, move your eyes to the center of the hairline on your forehead, then the temples on both sides, then the area in front of your ears. This is not a rule for how many times to rinse; it is an order of checking so you notice places you overlooked. Without pulling your face hard, turn it slightly to a direction that is easy for you to see, and look at the left and right sides separately.
If there is foam on the edge of the fabric, rinsing only the skin may mean it touches your face again when you put the fabric back. Do not press foam-covered hair or fabric against your forehead, and rinse the foam off your hands before touching. If the band needs adjusting, return it to its proper position with clean hands so that the skin that was hidden can be checked.
Think of the visible white foam separately from the soft, moist feeling after the foam is gone. There is no need to decide that face wash remains based on feel alone and keep rinsing until your skin feels squeaky. Use the rinsing method for the product you have as your standard, and start by checking whether you missed any foam you can see.
If the white substance does not change even when rinsed, is firmly stuck to the skin, or comes with redness or pain, do not decide it is foam and try to remove it with your nails or a towel. If you feel anything unusual, stop using the product, and consult a dermatologist if symptoms continue. It is important not to mix up reviewing your rinsing with judging the condition of your skin.
2.Arrange your hair and headband so the area to wash is visible

Next, make the boundary between the skin you wash and your hair visible. If your bangs are falling onto your forehead, rinse your hands first, then move them away from your face with a clip, headband or whatever you are used to using. The point is not to pull hard and push your hairline back, but to prepare by moving aside strands that fall over your face without strain.
If you use a headband, check in the mirror that the fabric is not covering the area of your forehead you wash. If it sits low and foam stays trapped under the fabric, adjust it within the range of how your own band is meant to be worn. Tightening it more so it won't slip is not a universal fix for missed rinsing.
Do not rub the short hairs at your temples over and over trying to tidy them all at once. After checking one side, check the other, and tell apart the places that are still covered by hair. You do not need to pull the same amount of hair on both sides; the priority is that the skin you are delivering water to is visible.
If there is foam on your hair, rinse it off before returning that strand to dry skin. Lightly move aside the thin strands that fall over your face and check whether foam is hidden at the roots. Do not expand this into rewashing all of your hair; deal with the face wash residue you can confirm in front of you.
If the band itself has foam on it, care for it separately following its washing instructions after use. Do not simply flip the foamy end over and press it to your forehead again; keep rinsing your face and rinsing your tools separate. If the position of the tool moves every time, you can also check the position of a face-washing headband and how to tuck in your hair.
If you arrange the mirror, the item to hold your hair back and the place for your towel before washing your face, you can reduce the motions of searching with foamy hands. After fixing your hair midway, do not bring your hand straight back to your face; rinse the foam off your hands too before moving on.
3.Rinse the foam off your hands and bring clean water to the hairline

Before rinsing your face, wash off the face wash left on your hands. Check not only your palms but also between your fingers and your fingertips for foam. This step gets your hands in order first so that you do not bring new foam back from your hands while you are trying to reduce the foam on your face.
When you catch water in your hands, after looking in the mirror, bring your face close to the sink and choose a position where you can stand steadily. Don't stand on tiptoe to make water reach your forehead; if that is hard, adjust your foot position or how high you raise your hands. Check beforehand that you have room to move your hands so you don't bump your face against the faucet.
Choose water or lukewarm water that suits the instructions of the face wash you use. You do not need to raise the temperature thinking hotter removes more, or endure cold water. Check that you can use it comfortably in your hands, and don't replace this with pointing the faucet's stream strongly at your face.
Cup both hands like a shallow bowl, catch clean water and carry it to your face. Rather than pressing your face hard into your hands, pour the water gently so that it reaches the skin. Do not repeatedly scoop up the foamy water collected in the basin; rinse with clean water each time.
If you carry water only to your cheeks, the upper edge of the hairline tends to be left outside the reach of your hands. Move your hands to where water reaches the upper forehead, then change the area to one temple and then the other. Hold your hands in a way that does not push water into your eyes or nose, catch water again if needed, and rinse without using force.
Do not rub the skin sideways with your fingers to push the foam out, and do not scratch the base of your hair with your nails. When it is hard to reach, review where you moved your hair aside and how high you raise your hands, rather than using force. Keep a posture in which you can move comfortably, without bending your neck back sharply.
Do not decide when you are done by number of times or seconds alone; rinse the whole area thoroughly following the product's rinsing instructions. Some face washes produce little foam or need no lathering, so do not treat the look of foam as a universal finish condition. Check that water has reached both the center and the outer edges of your face.
4.Don't wipe off remaining foam with a towel; rinse that spot again

After rinsing the whole face, take your hands away once and look at the hairline, with your hair moved aside, in the mirror. Instead of feeling around repeatedly with your eyes closed, check the top of your forehead and both temples at a stage where you can see them. If you spot foam anywhere, bring water to that spot again before applying the towel.
For example, if foam remains at your right temple, rinse your hands, move the hair on the right side aside, catch water again and pour it gently onto that skin. This does not mean you must also rewash your left cheek from the beginning. Keep rinsing the places that need it separate from adding more face wash and washing again.
If foam appears again when you put your hair back after rinsing, check whether some left on the ends of your hair or band remains. Before rinsing the same skin over and over, check where the foam is coming from. Also review whether each time you pour water you are pushing foam into the inside of your hair.
Picking off the white parts with a towel or cotton pad easily turns into wiping your skin repeatedly instead of rinsing. A face wash meant to be rinsed off should have its water or lukewarm water rinsing step finished before you take moisture off. Do not apply the method for wipe-off-only products to your usual face wash on your own judgment.
After checking the temples, also check the other outer edges where you spread face wash, such as in front of the ears and under the chin. There is no need to put your fingers into your ears or inside your eyes to check. And do not newly wash with foam places where you did not use face wash just to widen the rinsing area.
If at first you only passed water over the middle of the forehead, next time change your hand position to reach the temple sides too. Conversely, if you could not see the skin because of the band's fabric, review where it sits before the number of times you rinse. Briefly remembering where the water did not reach lets you choose adjustments other than rinsing the whole face for a long time.
If an odd feeling continues even after rinsing enough, don't keep trying by adding cleanser; check the precautions for use. Rather than trying to judge leftover foam and the feel of the product by yourself, stop using it if anything is wrong.
5.After rinsing, pat dry and fix one thing to prepare for next time

Once you have rinsed the face wash thoroughly according to its instructions, pick up a clean, soft towel. Gently press it against the skin to absorb moisture and lift it away without sliding. At the hairline too, adjust the part of the towel you press onto water drops, without strongly rubbing hair and skin together.
You can check how to apply the towel in steps for drying your face after washing without rubbing. The point this time is not to leave the rinsing so far to the towel. After taking off the moisture, move on to moisturizing care according to the instructions of the products you have.
If foam tends to remain in the same place, decide concretely what to change next time. Choose one that fits the situation where you actually had trouble from "move your bangs aside first," "check a position where the band doesn't cover the forehead," "rinse the foam off your hands first," and "carry water up to the top of the forehead." Try thinking beyond adjustments that only increase the number of rinses.
Put away the clips, bands and towels you used following each one's care instructions. Do not stack a foamy cloth on an unused towel; keep it separate from what you will use on your face next. For tools that need drying or washing, finish that before storing them.
When you change face washes, do not simply take the previous amount of foam or rinsed feel as your standard. Check the need to lather, the amount to use and how to rinse with the new container. Avoid mixing products that are used differently and trying to tell how well you rinsed.
What matters is not rubbing hard only at the spot where you found white foam, but arranging things so that you move hair and fabric aside and water reaches. Rinse the foam off your hands, bring clean water, check the places that remain, and only then go to the towel. Try adding this order to the end of your usual face washing.