eighth day skin The Rejuvenating Moisturizing Primer Broad Spectrum SPF 30
73/100 overall score
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About this sunscreen
eighth day skin The Rejuvenating Moisturizing Primer Broad Spectrum SPF 30 is a mineral, primer-style sunscreen built on Zinc Oxide. It is lightweight with a matte finish, very low white cast and a non-stinging feel, which is unusual for a zinc formula and makes it pleasant to wear. With a score around 73 and moderate protection, it is a comfortable mineral primer for anyone who wants sun cover and a smooth makeup base in one step.
Ingredient & SPF scores
☀️
UV protection
Moderate
42
- +41 Zinc Oxide at #1, UV filter (UVA1 +18)
- +1 Label claims (SPF 30)
👻
White cast
Low
74
- +100 Starting score
- −42 Zinc Oxide, 16% declared
- −15 Pure mineral formula (16% total declared)
- +28.5 Iron-oxide undertone, partial masking
- +2.8 PHSA dispersant, fights agglomeration
🪨
Heavy feel
Low
78
- +100 Starting score
- −30 Zinc Oxide, 16% declared
- +7.5 Volatile silicone at #5, flashes off
🍄
Fungal acne
Medium
65
- +100 Starting score
- −12 1 polysorbate/sorbitan emulsifiers that feed Malassezia (Polysorbate 20)
- −9 1 oils/butters that feed Malassezia (Lecithin)
- −14 1 long-chain (C12+) esters that feed Malassezia (Polyglyceryl-8 Oleate)
👕
Fabric stains
Medium
45
- +100 Starting score
- −40 Iron-oxide pigments at #59, makeup-like collar marks (washable)
- −15 Zinc Oxide at #1, white marks, worst on dark fabric (washable)
💧
Moisture
Balanced
LightNourishing
- ← 3 1 sebum-absorbing powders (Bentonite)
- ← 5 Volatile carriers flash off, leaving a dry finish
- ← 5 Zinc Oxide at #1, mild sebum absorbent
- → 10 Glycerin at #7, the anchor humectant
- → 2 Sodium Hyaluronate at #23, hyaluronic family
- → 1 1 strong humectants (Mel)
- → 2 Light emollient/solvent (Caprylic/Capric Triglyceride)
- → 0.5 1 fatty-alcohol emollients (Cetearyl Alcohol)
✨
Finish
Matte
MatteDewy
- ← 3 1 sebum-absorbing powders (Bentonite)
- ← 4 Volatile carriers flash off, leaving a dry finish
💄
Makeup base
Okay
PillsPrimer
- → 8 Primer-style base, volatile silicones and dimethicone slip
- ← 3 Humectant syrup tackiness
- ← 7.5 High mineral load at #1 greys under foundation (tinted)
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance →Full ingredient list (60)
What each ingredient does and how it moves each rating: green helps, red hurts, ↑ / ↓ give the direction, and ← / → shift a slider toward its ends (finish, moisture, makeup base). Auto-derived from our scoring rules and the ingredient's position.
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Mineral UV filter (Zinc Oxide), high in the list, a primary filter
- ↑ 41 UV protection, incl. long-UVA (UVA1)
- ↑ 42 16% declared
- ↑ 30 16% declared
- ↑ 15 white marks, worst on dark fabric (washable)
- light ← 5 mild sebum absorbent
- pills ← 7.5 High mineral load greys under foundation (tinted)
-
2 Water
Solvent base, the water phase
-
Botanical extract
-
Emollient, softens and smooths skin
-
Volatile silicone, flashes off for a light finish
- light ← 5 volatile carrier, flashes off
- matte ← 4 volatile carrier, flashes off
-
Emollient, softens and smooths skin
- 2 → nourishing light emollient
-
7 Glycerin
Humectant, pulls water into the skin
- 10 → nourishing the anchor humectant
-
Humectant, pulls water into the skin
-
Mattifying powder, absorbs oil and blurs the finish
- light ← 3 sebum-absorbing powder
- matte ← 3 sebum-absorbing powder
-
Fatty alcohol, an emollient and thickener, not the drying kind
- 0.5 → nourishing fatty-alcohol emollient
-
Emulsifier, keeps oil and water blended
- ↑ 14 feeds malassezia
-
Thickener and texture, structures the gel or cream
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Supporting ingredient
-
Humectant, pulls water into the skin
- 2 → nourishing hyaluronic family
-
24 Lysine Hcl
Protein, peptide or amino acid, conditions and hydrates skin
-
25 Alanine
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
27 Arginine
pH adjuster
-
28 Serine
Protein, peptide or amino acid, conditions and hydrates skin
-
29 Proline
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
31 Threonine
Protein, peptide or amino acid, conditions and hydrates skin
-
32 Valine
Protein, peptide or amino acid, conditions and hydrates skin
-
33 Leucine
Protein, peptide or amino acid, conditions and hydrates skin
-
34 Glycine
Protein, peptide or amino acid, conditions and hydrates skin
-
35 Isoleucine
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
37 Taurine
Protein, peptide or amino acid, conditions and hydrates skin
-
38 Lactic Acid
pH adjuster
-
39 Mel
Humectant, pulls water into the skin
- 1 → nourishing humectant
-
Emollient, softens and smooths skin
-
Humectant, pulls water into the skin
-
42 Allantoin
Soothing, skin-conditioning active
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Botanical extract
-
Botanical extract
-
Botanical extract
-
46 Lecithin
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
Humectant, pulls water into the skin
-
48 Maltodextrin
Humectant, pulls water into the skin
-
49 Mannitol
Humectant, pulls water into the skin
-
50 Xanthan Gum
Thickener and texture, structures the gel or cream
-
Emollient, softens and smooths skin
-
Preservative, keeps the formula from spoiling
-
53 Citric Acid
pH adjuster
-
Emulsifier, keeps oil and water blended
- ↑ 12 feeds malassezia
-
Humectant, pulls water into the skin
-
Emollient, softens and smooths skin
-
Preservative, keeps the formula from spoiling
-
Humectant, pulls water into the skin
-
59 Iron Oxides
Colorant or pigment
- ↑ 40 makeup-like collar marks (washable)
-
60 Mica
Colorant or pigment
Is the eighth day skin The Rejuvenating Moisturizing Primer Broad Spectrum SPF 30 mineral or chemical?
It is a mineral sunscreen and primer built on Zinc Oxide as its only listed UV filter.
Does this mineral primer leave a white cast?
White cast is unlikely. The ghost-mode rating is low, which is uncommon for a zinc formula and means it should stay close to invisible.
Is the eighth day skin The Rejuvenating Moisturizing Primer Broad Spectrum SPF 30 good for oily skin?
It tends to suit oily skin. The finish is matte, it is lightweight, and the breakout-trigger rating is low.