EltaMD, Inc UV Shield Broad-Spectrum SPF 45 Versus La Mer The Broad Spectrum SPF 50 UV Protecting Fluid
Updated on June 29, 2024
Overview
What they are
These products are both sunscreens. They have a total of 4 ingredients in common
Suited For
They're both likely to be good for fighting acne and dry skin
Free From
They both do not contain any harsh alcohols, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
EltaMD, Inc UV Shield Broad-Spectrum SPF 45 19 ingredients
La Mer The Broad Spectrum SPF 50 UV Protecting Fluid 56 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
EltaMD, Inc UV Shield Broad-Spectrum SPF 45 19 ingredients
La Mer The Broad Spectrum SPF 50 UV Protecting Fluid 56 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
EltaMD, Inc UV Shield Broad-Spectrum SPF 45 19 ingredients
La Mer The Broad Spectrum SPF 50 UV Protecting Fluid 56 ingredients

Reviews
Here's what our community thinks
EltaMD, Inc UV Shield Broad-Spectrum SPF 45 19 ingredients
This was the first product by EltaMD I ever used, and overall my experience was good through three months of use. This SPF in particular is a dual chemical/physical filter using 9% zinc oxide and 7.5% octinoxate. Sometimes in particular with chemical UV filters irritation is an important consideration, and I bring this up because while researching this product I did find a small amount of study Show more