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November 24, 2025
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From supplements and massages to workout routines, countless ways are touted to help increase your breast size. But the reality is: these tricks are no more than myths and old wives' tales that do little to help you achieve the perfect bosom you desire.
To separate fact from fiction, we rounded up nine misconceptions people commonly have about how to increase one's cup size.
Here's what's true.
8 popular myths about breasts debunked
1. Can I use Vaseline to enlarge my breasts?
A claim that has been making rounds on social media is that using Vaseline - yes, the tub of petroleum jelly that almost all of us have - every day for about a month can help increase your breast size and firmness.
In reality, there's no clinical evidence that applying Vaseline to your breasts daily will enlarge your bust or help with firmness.
Some even believe that massaging a combination of Vaseline and toothpaste can help increase breast size, but again, no experts have proven that these products affect the size and firmness of one's breasts.
If you heard someone telling you that they experienced skin tightness after applying toothpaste to their breasts, the tight after-feel is likely created because the toothpaste has dried on the skin.
2. Can drinking milk and eating yams, nuts, flax seeds, and sweet potatoes make my breasts bigger?
If you want to increase breast size naturally, Dr Ivan Puah, medical director of Amaris B. Clinic, has this advice: don't look in your refrigerator.
Unfortunately, no foods or eating plans have been clinically shown to enlarge the bust. Any food that purportedly helps increase your cup size is anecdotal.
3. Does massaging breasts help them grow?
A myth surrounding breast development that many females, some as young as teens, believe in, massaging or touching your breasts, unfortunately, does not cause them to grow bigger.
Similarly, wearing your bra to sleep or putting on a bra that is too small for you isn't going to keep your breasts from growing, either, if you're looking to reduce your cup size.
Breast growth is influenced by multiple factors. Genetics, nutrition, hormonal changes during puberty, pregnancy and lactation.
4. Are there pills that make your breasts grow?
Birth control pills generally do not affect breast size. Changes that occur during a menstrual cycle may be cyclical.
5. Does breastfeeding cause breasts to sag?
Ageing, weight loss, post-pregnancy or breastfeeding cause breasts to sag.
Breastfeeding may affect breast sagginess in two ways: the stretching of the connective tissue during breastfeeding and the loss of significant breast volume after cessation of lactation.
6. Can you exercise your way to bigger boobs?
You may have seen all the online videos and articles telling you that you can perk up your breasts and even increase your breast size by doing many bench presses.
This, unfortunately, is nothing but a myth, too.
That's because your breasts are made of fat and glandular tissues, not muscles, and they sit above your pectoral muscles, so training your pecs with bench presses will not have any effect on your bust size.
According to Dr Ivan Puah, doing so may even have a reverse effect because your breasts will actually shrink due to fat loss.
"Toning workouts such as weight lifting or push-ups only serve to tone up the muscles. It is important to remember that muscle and fat are two different components altogether, so there is no way to increase breast volume via workout."
7. Can you just gain weight around your chest to help enlarge your bust size?
As mentioned above, the breasts are composed of fat, so your cup size may increase if you've gained weight.
Weight gain/loss will definitely affect breast sizes, but it is not a parameter to be used to predict breast sizes.
8. Something is wrong with you if both sides of your breasts don't look identical.
Trust us when we say that your breasts do not - we repeat, do not - have to look identical, just like our eyes and brows.
In fact, one side of your breasts can be slightly larger than the other, as seen in a study published by the Aesthetic Surgery Journal, which found that the left breast was more significant than the right in the 600 female participants evaluated.
So, if your left breast is more prominent than your right, there's no need to fret. Think of them as sisters, not identical twins.
So, how can you increase your bust size?
We hate to break it to you, but there are limited ways - if at all - to increase your breast size naturally.
Thus far, breast augmentation surgery is the only proven method for increasing breast size.
If implants are off-limits for you, you may look at this alternative to get a shapelier silhouette instead: transferring excess fat from other body parts to your chest.
Consider fat grafting to increase breast size
Yes, we are not pulling your leg. Thanks to medical science, using excess fat from other body parts to enhance your bust is possible.
Known as autologous fat grafting, it involves transferring excess fat from areas such as the abdomen, tummy, and thighs to your breasts. This procedure is only performed by doctors who have approved liposuction licenses in Singapore.
Fat grafting to increase bust size is gaining popularity for obvious reasons. It essentially kills two birds with one stone by helping you achieve a fuller bosom while visibly trimming another part of your body.
It's essential that during your consultation with your doctor, you are open to discussing the ideal areas of your body for fat accumulation.
This is to help you achieve your desired body shape by trimming one identified part of your body and increasing your cup size simultaneously!
