When comparing SPF sunscreen with one and another, the one with higher SPF always ranks in top of the list. For example, people assume SPF 70 sunscreen has significantly better protection compared to SPF 30 / 50. This is majorly because of the higher number in the formulation. But there are other factors which needs to be considered than it appears.

SPF  numbers generaly indicate protection against sun protection against UVB radiation under standardised testing conditions. When the number increases, the level of UVB protection increases too with an improvement in the progress level.

So, which should you choose? This depends on the way you use them, when you use them, and what the factoros you are considering using them matters. However, the SPF number is only one part of the decision. Other factors include broad-spectrum protection, application amount, reapplication and the sunscreen's water resistance also matter. In this guide get to know the difference between SPF 30, SPF 50 and SPF 70, and help you choose a sunscreen based on your actual sun exposure rather than the number printed on the label.

What Does SPF Mean in Sunscreen?

The Sun Protection Factor measures how well a sunscreen can protect skin from the sunburns, which is primarily UVB radiation. Sunlights are often associated with ultraviolet radiation which includes UVA and UVB. Both are related to different skin concerns like premature skin ageing and pigmentation, which actually contribute to skin damage.

For example, SPF 50 sunscreen does not mean they protect UVA rays better than SPF 30 sunscreen. The SPF value alone does not establish the level of UVA protection. When choosing a sunscreen, consider these three essentials:

• SPF 30 or higher: This helps in giving appropriate levels of UVB protection.

• Broad-spectrum protection: This covers both UVA and UVB radiation.

• Water resistance: Particularly used for swimming, exercising outdoors or sweating.

SPF 30 vs SPF 50 vs SPF 70: The Main Differences

Even though the difference is not much higher, there is a minimal variation  while using SPF 30, 50 or 70. All three ratings represent relatively high UVB protection, with progressively smaller increases as the number rises.

SPF 30: Is It Enough for Daily Use?

As a beginner, yes, this is one of the good starting points to go with for everyday sun protection. When used correctly, it filters around 97% of the UVB radiation under standardised testing conditions.

If you are someone who spends indoors, takes short outdoor breaks, or commutes randomly, then SPF 30 Sunscreen is one of the best choices as it provides broad spectrum protection. However, the other factor which you should note is the amount of time you spend outdoors.

SPF 50: Does It Give More Protection Than SPF 30?

SPF 50 filters around 98% of the UVB radiation under standard testing conditions. Compared to SPF 30, this increases at least one percent in proportion of UVB filtered. Even though the number difference seems to be small, that always is a fact to notice right.

SPF can provide an additional margin of UVB protection when the sunscreen is applied properly. However, SPF 50 should not be treated as a substitute for adequate application. Applying too little sunscreen can reduce the protection you receive.

Is SPF 50 always better than SPF 30?

Not necessarily, if you apply SPF 30 generously and consistently, it does provide more reliable  protection than SPF 50 sunscreen that you apply little or forget to reapply. The best decision considers the complete product formulation and how it fits in your skincare routine.

SPF 70: Do You Really Need a Higher SPF?

SPF 70 always opt for increase in the UVB protection compared with SPF 50. Consider it in a simplified filtration calculation, SPF 70 filters approximately 98.6% of UVB radiation compared with approximately 98% for SPF 50.

When might SPF 70 be useful?

You may consider SPF 70 if:

• You prefer a higher labelled SPF.

• Your routine involves frequent or longer outdoor exposure.

• You want an additional margin of UVB protection.

Does SPF 70 mean you can stay outdoors longer?

Never. Even though they do offer longer protection, it does mean they can save you or keep you free for one whole day or for more hours.

Which Is Best - SPF 30 vs 50 vs 70

Conclusion

When considering three different SPF sunscreen, they know that everyone has their own value and it gives right protection for skin. 

When coming to SPF 30, they are perfect for daily usage; And in terms of SPF 50, it offers a little higher level of UVB protectection and perfect for ones who spend time outdoors. Lastly, when it comes to SPF 70 they offer higher labelled SPF.