Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ by Round Lab
Round Lab

Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++

Sunscreens

Safety score

Pregnancy-focused assessment

Low Risk79/100
Higher concernLower concern

Manual review 2026-07-13: The recorded formula was manually reviewed. This formula contains Dipotassium Glycyrrhizate, classified as low risk under MamaSkin's pregnancy-screening policy. This is a cautious classification, not a known pregnancy contraindication; see the highlighted ingredient entry for its rationale and sources.

Formula and assessment check

Ingredient safety review updated 13 July 2026. Product formulas can change, so compare the ingredients shown here with the packaging you have.

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MamaSkin assessment · 13 July 2026

Is Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ suitable during pregnancy?

MamaSkin currently classifies Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ as Low risk, with a stored score of 79/100. This is a precautionary classification, not an unqualified pregnancy-safe recommendation. Read the ingredient context and any manual-review explanation below.

Why this rating? Manual-review explanation

Manual review 2026-07-13: The recorded formula was manually reviewed. This formula contains Dipotassium Glycyrrhizate, classified as low risk under MamaSkin's pregnancy-screening policy. This is a cautious classification, not a known pregnancy contraindication; see the highlighted ingredient entry for its rationale and sources.

39 of 40 ingredient entries on this page have a recorded score, evidence summary and source text. 1 entry does not have all of those fields. Unmatched entries retain the default No known risks label but are not independently assessed here; missing evidence does not establish safety.

Ingredient breakdown

See how the listed formula falls across MamaSkin's pregnancy-focused risk bands.

39

No known risks

1

Low risk

0

Medium risk

0

High risk

Ingredients

Ingredients with a higher risk flag appear first, followed by the rest of the formula.

Dipotassium Glycyrrhizate

Low Risk

A purified glycyrrhizic-acid salt used as a soothing and skin-conditioning ingredient. Cosmetic safety reviewers concluded that dipotassium glycyrrhizate is safe in current cosmetic use and noted poor dermal absorption. MamaSkin nevertheless applies a cautious low-risk classification for consistency with the existing licorice family because high oral glycyrrhizin exposure has pregnancy-related concerns; this is not a topical contraindication.

Sources: CIR: Safety Assessment of Glycyrrhizic Acid and Derivatives https://cir-reports.cir-safety.org/view-attachment/?id=49a63435-8e74-ec11-8943-0022482f06a6

Water

No Known Risks

Water (aqua) is the purified solvent used as the base of many cosmetics. MamaSkin classifies plain water as No known risks for normal topical use. Cosmetic water quality must be controlled to prevent contamination; this entry does not cover botanical waters or establish the safety of the finished formula.

Sources: Personal Care Products Council, CosmeticsInfo: Water https://www.cosmeticsinfo.org/ingredient/water/; FDA: Cosmetic Ingredient Names (Water/Aqua identity) https://www.fda.gov/cosmetics/cosmetics-labeling/cosmetic-ingredient-names

Dibutyl Adipate

No Known Risks

A diester used as an emollient, solvent and plasticizer. After reviewing additional dermal, reproductive, developmental and genotoxicity data, cosmetic safety reviewers concluded that dibutyl adipate is safe in current cosmetic use and concentration. No pregnancy-specific concern is identified for normal topical cosmetic exposure.

Sources: CIR: Amended Final Report of the Safety Assessment of Dibutyl Adipate https://cir-reports.cir-safety.org/view-attachment?id=f1624b41-8e74-ec11-8943-0022482f06a6

Show all (40)

Propanediol

No Known Risks

Solvent and humectant used to improve texture and ingredient solubility. Low systemic exposure expected from topical cosmetic use.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

Diethylamino Hydroxybenzoyl Hexyl Benzoate

No Known Risks

Modern UVA filter (often called Uvinul A+ or DHHB). Regulatory assessments have repeatedly evaluated this filter as safe in cosmetic products at concentrations up to 10%. The most recent SCCS advice focuses on controlling a manufacturing impurity (DnHexP) rather than on new toxicity of DHHB itself. Human biomonitoring data indicate low systemic exposure from normal sunscreen use, and current reviews do not identify specific reproductive or developmental toxicity signals at approved concentrations.

Sources: SCCP opinion referenced in Directive 2008/123/EC: concludes that Diethylamino Hydroxybenzoyl Hexyl Benzoate used at a maximum of 10% in cosmetic (including sunscreen) products does not pose a risk to the consumer. Regulatory summaries (e.g. CosLaw and CIRS Group updates, 2025) reviewing the SCCS DHHB opinion and reiterating that DHHB remains permitted up to 10% in EU cosmetics when impurity limits are respected.

Polymethylsilsesquioxane

No Known Risks

A silicone resin used as a film former, texture enhancer and opacifying ingredient in makeup, sunscreen and skin care. The Cosmetic Ingredient Review concluded that polysilsesquioxanes including Polymethylsilsesquioxane are safe in current cosmetic use. Available evidence does not identify a pregnancy- or breastfeeding-specific concern for normal topical cosmetic exposure.

Sources: CIR: Safety Assessment of Polysilsesquioxanes as Used in Cosmetics (Final Report) https://cir-safety.org/sites/default/files/PLYSIL122017FR.pdf

Ethylhexyl Triazone

No Known Risks

UV filter used in sunscreens and day products to help absorb UVB radiation. Reviewed cosmetic safety and regulatory sources support current cosmetic use within applicable concentration limits, with no pregnancy- or breastfeeding-specific topical concern identified in the material reviewed.

Sources: EU CosIng Annex VI / UV filters; EU scientific opinion on Ethylhexyl Triazone (Uvinul T 150)

Niacinamide

No Known Risks

Niacinamide (vitamin B3) is widely used for barrier support and tone/texture benefits, and is generally considered safe in pregnancy and breastfeeding when used topically at cosmetic concentrations.

Sources: CIR; EU/UK Cosmetics Regulation

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

No Known Risks

Hybrid particulate UV filter (often referred to as Tinosorb M or Bisoctrizole). It behaves more like an inorganic, microfine filter, forming a film on the skin surface with minimal percutaneous absorption. EU Scientific Committee on Consumer Safety (SCCS) opinions on both conventional and nano forms support its safe use in dermally applied cosmetic products up to 10% under current conditions of use, with main caution relating to inhalation of spray products rather than systemic toxicity from normal topical application.

Sources: SCCS opinions on Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT), including SCCS/1460/11 and SCCS/1546/15: conclude that MBBT used as a UV filter up to 10% in dermal cosmetic products is safe under the evaluated conditions of use. European Commission, revision opinion on Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (nano form), 2015: confirms safety of nano MBBT up to 10% in dermally applied cosmetics when used according to specified conditions

Coco-Caprylate/Caprate

No Known Risks

Coconut-derived emollient ester used as a lightweight skin-conditioning ingredient. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.

Sources: CIR cosmetic ingredient safety references for alkyl esters/emollient esters; EU CosIng / cosmetics regulatory inventory

Caprylyl Methicone

No Known Risks

Volatile/low-residue silicone emollient used to improve spreadability and sensory feel. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

Sources: CIR: Amended Safety Assessment of Dimethicone, Methicone, and Substituted-Methicone Polymers as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory

Diethylhexyl Butamido Triazone

No Known Risks

Organic UV filter used in sunscreens, also known as Iscotrizinol or Uvasorb HEB. Available cosmetic safety and regulatory sources support use within applicable concentration limits. No pregnancy- or breastfeeding-specific topical concern was identified in the sources reviewed.

Sources: EU CosIng Annex VI / UV filters; SCCS / European Commission cosmetic UV filter safety assessments; PubMed

Glycerin

No Known Risks

Glycerin is a widely used humectant that supports hydration and the skin barrier, with a long safety record and no known pregnancy or breastfeeding concerns in topical cosmetic use.

Sources: CIR; EU/UK Cosmetics Regulation

1,2-Hexanediol

No Known Risks

1,2-Hexanediol is commonly used as a solvent and preservative booster; topical exposure is low and it has no known pregnancy or breastfeeding concerns at cosmetic concentrations, though very sensitive skin may occasionally react.

Sources: CIR; EU/UK Cosmetics Regulation

Butylene Glycol

No Known Risks

Solvent and humectant commonly used in leave-on products. Not associated with pregnancy-specific concerns at cosmetic exposure levels.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

Betula Platyphylla Japonica Juice

No Known Risks

A botanical extract, juice or water used primarily for skin conditioning, moisturising, soothing or antioxidant support. Direct pregnancy studies of the named cosmetic material were not identified. No reproductive or developmental hazard was identified for normal topical exposure to a compliant finished cosmetic; oral herbal or medicinal use is outside this classification.

Sources: European Commission CosIng ingredient inventory; Cosmetic Ingredient Review botanical safety-assessment framework and relevant plant-family assessments. No ingredient-specific human pregnancy study of normal topical cosmetic use was identified.

Sodium Hyaluronate

No Known Risks

Sodium hyaluronate (hyaluronic acid salt) is used for hydration and cushioning, with very low systemic absorption from topical use and no known pregnancy or breastfeeding concerns at cosmetic concentrations.

Sources: CIR; EU/UK Cosmetics Regulation

Hyaluronic Acid

No Known Risks

High-water-binding humectant used to support hydration at the skin surface. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

Sources: CIR: Safety Assessment of Hyaluronates as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory

Glyceryl Glucoside

No Known Risks

A sugar-derived humectant or starch hydrolysate used to retain moisture and support formula texture. Cosmetic safety reviewers concluded that the assessed saccharide humectants and hydrogenated starch hydrolysate are safe in current practices. Dermal absorption of larger carbohydrate materials is expected to be limited.

Sources: CIR: Saccharide Humectants safety assessment; Hydrogenated Starch Hydrolysate final report, September 2015; CIR December 2025 Quick Reference Table https://cir-safety.org/sites/default/files/QRT-Update-Dec2025.pdf

Allantoin

No Known Risks

Allantoin is a soothing skin protectant commonly used to help reduce irritation and support comfort, with no known pregnancy or breastfeeding concerns in topical cosmetic use.

Sources: CIR; EU/UK Cosmetics Regulation

Portulaca Oleracea Extract

No Known Risks

A purslane extract used mainly for skin conditioning. Cosmetic safety reviewers concluded that Portulaca oleracea extract is safe in current cosmetic practices when formulated to be non-sensitising. Botanical irritation or allergy remains possible, but no pregnancy-specific concern was identified for normal topical use.

Sources: CIR: Safety Assessment of Portulaca oleracea-Derived Ingredients as Used in Cosmetics https://cir-reports.cir-safety.org/view-attachment/?id=5c0d093e-6947-f945-8d16-43dd820a5e63

Artemisia Annua Extract

No Known Risks

A botanical extract, juice or water used primarily for skin conditioning, moisturising, soothing or antioxidant support. Direct pregnancy studies of the named cosmetic material were not identified. No reproductive or developmental hazard was identified for normal topical exposure to a compliant finished cosmetic; oral herbal or medicinal use is outside this classification.

Sources: European Commission CosIng ingredient inventory; Cosmetic Ingredient Review botanical safety-assessment framework and relevant plant-family assessments. No ingredient-specific human pregnancy study of normal topical cosmetic use was identified.

Pinus Sylvestris Leaf Oil

No Known Risks

Anthemis Nobilis Flower Oil

No Known Risks

A Roman chamomile flower extract or oil used for skin conditioning and fragrance. Cosmetic safety reviewers concluded that Anthemis nobilis-derived ingredients are safe in current practices when formulated to be non-sensitising. People allergic to plants in the daisy family may be more likely to react.

Sources: CIR: Safety Assessment of Anthemis nobilis-Derived Ingredients as Used in Cosmetics https://cir-safety.org/sites/default/files/anthem122013final.pdf

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

No Known Risks

Polymer thickener and stabiliser used in creams and sunscreens. Low systemic exposure expected.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

Sodium Stearoyl Glutamate

No Known Risks

Amino-acid-derived emulsifier and skin-conditioning support ingredient. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.

Sources: CIR cosmetic ingredient safety references for amino acid alkyl amides/salts; EU CosIng / cosmetics regulatory inventory

Polyacrylate Crosspolymer-6

No Known Risks

Large polymer thickener and stabilizer used in gels, serums and creams. Systemic exposure from topical cosmetic use is expected to be low, with no pregnancy- or breastfeeding-specific concern identified in reviewed cosmetic references.

Sources: CIR cosmetic ingredient safety references for acrylates/polyacrylate crosspolymers; EU CosIng / cosmetics regulatory inventory

Ethylhexylglycerin

No Known Risks

Preservative booster and skin-conditioning agent. Considered safe for cosmetic use with low systemic exposure when used as intended.

Sources: Scientific Committee on Consumer Safety (EU); Cosmetic Ingredient Review (US)

Ascorbic Acid

No Known Risks

Vitamin C antioxidant used to support brightness and photoprotection; functions as an antioxidant/pH adjuster in cosmetic formulas. No pregnancy-specific contraindications are identified for topical cosmetic use.

Sources: CIR (Ascorbic Acid); PubMed (NLM)

Adenosine

No Known Risks

Skin-conditioning ingredient commonly used in leave-on skincare. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

Sources: CIR: Safety Assessment of Adenosine Ingredients as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory

Pentylene Glycol

No Known Risks

Humectant and preservative booster. Considered safe for cosmetic use with low systemic exposure.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

Behenyl Alcohol

No Known Risks

Long-chain fatty alcohol used as an emollient and thickener. This is not the same concern profile as simple drying alcohols; reviewed cosmetic safety sources support normal topical use.

Sources: CIR: Final Report on the Safety Assessment of Cetearyl Alcohol, Cetyl Alcohol, Isostearyl Alcohol, Myristyl Alcohol, and Behenyl Alcohol; EU CosIng / cosmetics regulatory inventory

Poly C10-30 Alkyl Acrylate

No Known Risks

A high-molecular-weight acrylate polymer used as a film former and texture modifier. Its high molecular weight limits meaningful skin penetration. No reproductive or developmental hazard was identified for normal topical cosmetic exposure.

Sources: European Commission CosIng ingredient inventory; Cosmetic Ingredient Review botanical safety-assessment framework and relevant ingredient-family assessments. No ingredient-specific human pregnancy study of normal topical cosmetic use was identified.

Polyglyceryl-3 Methylglucose Distearate

No Known Risks

An emulsifier built from polyglycerin, methyl glucose and stearic-acid components, used to stabilise creams and improve texture. Exact pregnancy-specific data are limited. Cosmetic safety reviewers concluded that related methyl glucose esters and polyglyceryl fatty-acid esters are safe in current cosmetic use when formulated to be non-irritating. No pregnancy-specific topical concern was identified by applying those related-group assessments to ordinary cosmetic exposure.

Sources: CIR: Safety Assessment of Methyl Glucose Polyethers and Esters https://www.cir-safety.org/supplementaldoc/safety-assessment-methyl-glucose-polyethers-and-esters-used-cosmetics; CIR: Safety Assessment of Polyglyceryl Fatty Acid Esters https://cir-safety.org/sites/default/files/PGlyFE092016FR.pdf

Decyl Glucoside

No Known Risks

Mild nonionic surfactant used in cleansers and emulsions. Reviewed cosmetic ingredient references support normal topical rinse-off and leave-on use, with no pregnancy- or breastfeeding-specific concern identified; sensitive skin may still react to surfactants.

Sources: CIR: Safety Assessment of Alkyl Glucosides as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory

Tromethamine

No Known Risks

pH adjuster and buffer used to stabilise formulations. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

Sources: CIR: Safety Assessment of Tromethamine as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory

Xanthan Gum

No Known Risks

Natural polysaccharide thickener used for stability and texture. Not associated with pregnancy-specific concerns.

Sources: European cosmetics regulatory framework

T-Butyl Alcohol

No Known Risks

A volatile solvent and denaturant used in small amounts in cosmetics. Cosmetic safety reviewers concluded that t-butyl alcohol is safe in current practices of use and concentration; their assessment included reproductive and developmental data and found a large exposure margin at cosmetic use levels. It may irritate eyes or skin in concentrated form.

Sources: CIR: Amended Safety Assessment of t-Butyl Alcohol as Used in Cosmetics https://cir-safety.org/sites/default/files/FAR_t-ButylAlcohol_092024.pdf

Tocopherol

No Known Risks

Vitamin E antioxidant used to protect oils and support the skin barrier. Not associated with pregnancy-specific concerns at cosmetic exposure.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

Carbomer

No Known Risks

Polymer thickener used to create gel textures. Large-molecule ingredient with negligible systemic absorption.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

Formulations can change without notice. For the most accurate result, compare this list with your packaging and scan the exact ingredient label in MamaSkin when you repurchase.

Questions about this assessment

Has every ingredient in Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ been assessed?

39 of 40 ingredient entries on this page have a recorded score, evidence summary and source text. 1 entry does not have all of those fields. Unmatched entries retain the default No known risks label but are not independently assessed here; missing evidence does not establish safety.

Does this assessment apply to the Round Lab Birch Moisturizing Sunscreen SPF 50+ PA++++ I have?

Only if the ingredient list on your packaging matches the recorded formula shown here. Formulas can differ by market and change over time. Compare the full list, not just the product name; report a mismatch if it differs.

Does this pregnancy assessment also establish breastfeeding suitability?

No. This page presents a pregnancy-focused product assessment. Do not infer a breastfeeding conclusion from its score or label; breastfeeding requires a separate assessment of the formula and how it is used.

How to use this assessment

The risk band is the primary conclusion. The score adds detail within that band and should not be used to compare products as if a one-point difference were clinically meaningful.

MamaSkin provides pregnancy-focused information, not medical advice. Your midwife, GP, pharmacist or dermatologist should take priority when your circumstances differ from typical cosmetic use.

Read the full methodology