BYBI

BYBI Day Defence SPF30

Name: BYBI - Day Defence SPF30
Brand: BYBI

SPF 30Efficacy60/100IrritancyLow·1 UV filter

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Works for

0 of 2 advertised claims delivered

Sun protection

SPF 30 · 1 UV filter · Broad spectrum

Weak protectionLow zinc dose

SPF 30Broad spectrumMineral filters

This product uses a single UV filter (zinc oxide) in a relatively low concentration and might not be able to provide a reliable sun protection.

This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.

UV spectrum

UVB290–320 nmUVA II320–340 nmUVA I340–400 nm

Zinc Oxide

FilterCoverageWhat it doesEst. amount

Zinc Oxide Mineral UVBUVA Photo-stable A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant~12–15%

~ marks concentrations estimated from label position and typical use levels

Reef-safe

No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.

Exfoliation

3 ingredients credited for this claim

Limited support

What the product description says

“Sugar Maple , A natural source of malic and tartaric acids that slough away dead skin cells for a brighter complexion.”

Source: Content

This product might help exfoliate the skin with tartaric acid, but This ingredient is not the most effective.

Tartaric acidKey activeEffect: MediumAn AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levels~0.15–0.25%

Gluconic acidUnder-dosedEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in imporved hydration levels. It has been shown to be helpful against acne and clogged pores. Might help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.05–0.1%

Lactic acidUnder-dosedEffect: HighAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.6–0.85%

Anti-oxidation

Not advertised by the brand · 3 ingredients credited for this claim

Moderate support

This product contains antioxidants (tartaric acid) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

TocopherolUnder-dosedEffect: HighPure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.55–0.85%

Moisturizing

Not advertised by the brand · 12 ingredients credited for this claim

Good support

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: caprylic/capric triglyceride, shea butter ethyl esters.

Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~3.9–4.7%

Mauritia flexuosa fruit oilKey activeEffect: HighHelps soften the upper layer of the skin~1.9–2.4%

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2.4–2.9%

C8-12 acid triglycerideKey activeEffect: MediumHelps soften the upper layer of the skin~3–3.6%

Shea butter ethyl estersKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~1.5–1.8%

Dicaprylyl carbonate· EmollientEffect: LowHelps products spread more easily and works as an emollient to soften skin~5.8–7.1%

Aloe barbadensis leaf juice powderEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.65–0.95%

LysolecithinEffect: LowLecithin derivative. It helps oil and water mix together and can enhance penetration of other ingredients. It helps soften the upper layer of the skin~0.5–0.75%

TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.55–0.85%

Can it cause trouble?

Irritancy

10 flagged ingredients

Low risk

We flag 10 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.

IngredientFunctionIrritationEst. amount

PullulanCreates a thin drying film on the skin resulting in a short-term tightening effectHigh~0.25–0.5%est.

Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~3.9–4.7%est.

Mauritia flexuosa fruit oilHelps soften the upper layer of the skinMedium~1.9–2.4%est.

Polyhydroxystearic acidUsed to create a thicker product consistency and stabilize the formulationMedium~0.95–1.15%est.

Aloe barbadensis leaf juice powderTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.65–0.95%est.

Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.6–0.85%est.

Phytic acidAn alpha-hydroxy acid (AHA), but is mostly used to stabilize product formulations in cosmeticsMedium~0.35–0.65%est.

Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.3%est.

Tartaric acidAn AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levelsMedium~0.15–0.25%est.

Gluconic acidA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in imporved hydration levels. It has been shown to be helpful against acne and clogged pores. Might help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicalsMedium~0.05–0.1%est.

Comedogenic

Clean of flagged comedogenic ingredients

None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%

Formula

Irritation risk: Low

Plain old water

More about Water

Zinc oxide~12–15%

UV filterKey active

Irritation risk: Low

Works for

Sun protection

A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant

More about Zinc oxide

Dicaprylyl carbonate~5.8–7.1%

Formula

Irritation risk: Low

Works for

Moisturizing

Helps products spread more easily and works as an emollient to soften skin

More about Dicaprylyl carbonate

Caprylic/capric triglyceride~3.9–4.7%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride

C8-12 acid triglyceride~3–3.6%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps soften the upper layer of the skin

More about C8-12 acid triglyceride

Cetearyl olivate~2.6–3.2%

Formula

Irritation risk: Low

Works for

Cleansing

Helps oil and water mix together

More about Cetearyl olivate

Glycerin~2.4–2.9%

Key active

Irritation risk: Low

Works for

Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin

Mauritia flexuosa fruit oil~1.9–2.4%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

Helps soften the upper layer of the skin

More about Mauritia flexuosa fruit oil

Shea butter ethyl esters~1.5–1.8%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps soften the upper layer of the skin

More about Shea butter ethyl esters

Sorbitan olivate~1.1–1.4%

Formula

Irritation risk: Low

Works for

Cleansing

Helps oil and water mix together

More about Sorbitan olivate

Polyhydroxystearic acid~0.95–1.15%

Irritant · medium

Irritation risk: Medium

Works for

Cleansing

Used to create a thicker product consistency and stabilize the formulation

More about Polyhydroxystearic acid

Inulin lauryl carbamate~0.7–1.05%

Formula

Irritation risk: Low

Works for

Cleansing

More about Inulin lauryl carbamate

Aloe barbadensis leaf juice powder~0.65–0.95%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf juice powder

Lactic acid~0.6–0.85%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Evens skin toneExfoliationMoisturizingAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid

Tocopherol~0.55–0.85%

Under-dosed

Irritation risk: Low

Works for

Anti-oxidationMoisturizingAnti-agingAnti-inflammatory

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol

Lysolecithin~0.5–0.75%

Formula

Irritation risk: Low

Works for

CleansingMoisturizing

Lecithin derivative. It helps oil and water mix together and can enhance penetration of other ingredients. It helps soften the upper layer of the skin

More about Lysolecithin

Sclerotium gum~0.45–0.65%

Formula

Irritation risk: Low

Used to create gel-like formulas and stabilize emulsions

More about Sclerotium gum

Phytic acid~0.35–0.65%

Irritant · medium

Irritation risk: Medium

An alpha-hydroxy acid (AHA), but is mostly used to stabilize product formulations in cosmetics

More about Phytic acid

Propanediol~0.35–0.6%

Formula

Irritation risk: Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol

Pullulan~0.25–0.5%

Irritant · high

Irritation risk: High

Works for

Mattifying

Creates a thin drying film on the skin resulting in a short-term tightening effect

More about Pullulan

Xanthan gum~0.2–0.4%

Formula

Irritation risk: Low

Works for

Cleansing

Used to create a thicker product consistency

More about Xanthan gum

Citric acid~0.15–0.3%

Irritant · medium

Irritation risk: Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid

Tartaric acid~0.15–0.25%

Key activeIrritant · medium

Irritation risk: Medium

Works for

ExfoliationMoisturizingAnti-oxidation

An AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levels

More about Tartaric acid

Gluconic acid~0.05–0.1%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Evens skin toneAnti-oxidationAnti-blemishExfoliationMoisturizingAnti-aging

A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in imporved hydration levels. It has been shown to be helpful against acne and clogged pores. Might help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals

More about Gluconic acid

Silica~0.2–0.35%

Formula

Irritation risk: Low

Used to absorb oil and can temporarily mattify skin

More about Silica

Ingredient list view

Water, Zinc oxide, Dicaprylyl carbonate, Caprylic/capric triglyceride, C8-12 acid triglyceride, Cetearyl olivate, Glycerin, Mauritia flexuosa fruit oil, Shea butter ethyl esters, Sorbitan olivate, Polyhydroxystearic acid, Inulin lauryl carbamate, Aloe barbadensis leaf juice powder, Lactic acid, Tocopherol, Lysolecithin, Sclerotium gum, Phytic acid, Propanediol, Pullulan, Xanthan gum, Citric acid, Tartaric acid, Gluconic acid, Silica

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Product summary

"BYBI - Day Defence SPF30" uses a single UV filter (zinc oxide) in a relatively low concentration and might not be able to provide reliable sun protection.

This product should also be hydrating enough to use without an additional moisturizer during the day.

Sunscreen filters

This sunscreen is a mineral sunscreen. It uses zinc oxide for sun protection. Zinc oxide almost never irritates the skin or stings eyes, but it can leave a white cast.

Irritation risk

It contains actives that can be irritating. We assess the overall irritancy of this sunscreen to be low. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

About the brand

According to Cruelty-Free Kitty "BYBI" is cruelty free, but its parent company is not.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 17 studies and safety reviews.

1
A review of inorganic UV filters zinc oxide and titanium dioxideonlinelibrary.wiley.com
2
Risk assessment of zinc oxide, a cosmetic ingredient used as a UV filter of sunscreensncbi.nlm.nih.gov
3
Characterization of the UVA protection provided by avobenzone, zinc oxide, and titanium dioxide in broad-spectrum sunscreen productsncbi.nlm.nih.gov
4
Ultraviolet Protection Properties of Commercial Sunscreens and Sunscreens Containing Zno Nanorodsiopscience.iop.org
5
ZnO nanoparticles and organic chemical UV-filters are equally well tolerated by human immune cellsncbi.nlm.nih.gov
6
Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
7
Epidermal and dermal effects of topical lactic acidncbi.nlm.nih.gov
8
Dual Effects of Alpha-Hydroxy Acids on the Skinpdfs.semanticscholar.org
9
Vitamin E in dermatologyncbi.nlm.nih.gov
10
Vitamin E and Skin Healthlpi.oregonstate.edu
11
Cosmetic and dermatologic use of alpha hydroxy acidsonlinelibrary.wiley.com
12
Comparative Evaluation of Efficacy and Tolerability of Glycolic Acid, Salicylic Mandelic Acid, and Phytic Acid Combination Peels in Melasmancbi.nlm.nih.gov
13
Control of keratinization with á-hydroxy acids and related compounds: I. Topical treatment of ichthyotic disordersjamanetwork.com
14
Dual Effects of Alpha-Hydroxy Acids on the Skinmdpi.com
15
Method of treating wrinkles using tartaric acidpatents.google.com
16
Impact of the condition of storage of tartaric acid solutions on the production and stability of glyoxylic acidsciencedirect.com
17
Alpha-hydroxyacids and carboxylic acidsonlinelibrary.wiley.com

BYBIDay Defence SPF30

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