Best Sephora Size Up Mascara Picks for Bigger Lashes Now

The best way to get Sephora Size Up mascara is the Sephora Favorites Makeup Mania Set. It includes a full-size Size Up mascara in Ultra Black. The volumizing formula sizes up lashes instantly. This guide compares the top verified Size Up options on Amazon. Note that the standalone Size Up tube is not indexed on Amazon. We cover the verified set containing the full-size mascara, plus a sibling Sephora mascara.
Size Up is Sephora Collection's volumizing mascara. It promises bigger, fuller lashes. The Makeup Mania set bundles it with five other full-size products. Big By Definition is its defining and volumizing sibling. Both come from Sephora Collection. Both options below are verified live Amazon listings.
Start by deciding what you want. The set gives a full makeup wardrobe. The Big By Definition duo focuses on lashes. Both deliver Sephora Collection quality. Read ahead for set reviews, tubing explainers, and answers to common questions.
Key Takeaways
- Our top pick balances performance, gentleness, and value for most people.
- Match the formula to your specific needs using the buying criteria below.
- Read real verified reviews before buying, since marketing claims often overpromise.
Quick Answer: Top 3 Picks
- Sephora Favorites Makeup Mania Set with Full-Size Size Up Mascara Includes full-size Size Up mascara.
- Sephora Big By Definition Mascara, 2 Pack Two full-size mascaras.
Full reviews and comparisons below.
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Our Top Picks

Best for: Getting full-size Size Up plus extras
#1 Best OverallSephora Favorites Makeup Mania Set with Full-Size Size Up Mascara
- Includes full-size Size Up mascara
- Multiple deluxe beauty minis
- Curated Sephora set
- Gift-ready packaging
Pros
- Full-size Size Up included
- Extras make it great value
- Perfect for beauty lovers
Cons
- Set availability fluctuates
- Minis may not suit all
- Pricier than mascara alone

Best for: Sephora tubing mascara in a value duo
Runner-UpSephora Big By Definition Mascara, 2 Pack
- Two full-size mascaras
- Tubing formula
- Defines and lengthens
- Easy warm-water removal
Pros
- Two tubes for the price
- Tubing removes with water only
- No smudging or flaking
Cons
- Not the Size Up formula
- Tubing needs full saturation to remove
- Less volume than Size Up
Makeup Mania Set: Size Up Plus Five More
The Makeup Mania Set is a six-product Sephora Favorites box. It includes a full-size Size Up mascara in Ultra Black. You also get luminizer, lip stain, eye pencil, lip plumper, and nail polish. Plus a travel vanity bag. The set costs around thirty-five dollars. The value far exceeds buying separately. The Size Up mascara is the full 0.47 oz size. It volumizes lashes with intense black pigment. The set suits gift buyers and Sephora fans. Everything arrives new in box. This is the only verified way to get Size Up on Amazon. The Makeup Mania set is the strategic way to get Size Up. Standalone tubes are scarce on Amazon. The set guarantees a full-size tube. The extras add genuine value. Deluxe minis let you try other products. The curation is thoughtful. Sephora knows its customers. The set suits gift buyers. The packaging looks premium. The recipient gets variety. The Size Up inside is full size. That is the key detail. Minis would be disappointing. Full size delivers the experience. The thirty-five-dollar price is fair. The contents exceed that value. Sets like this sell out. Holiday demand is intense. Buy when you see it. The mascara alone justifies the price. Everything else is bonus. This is the recommended path. Do not wait for standalone tubes. The set is better anyway. Variety beats singularity.
Big By Definition: The Lash-Focused Sibling
Big By Definition is Sephora Collection's defining mascara. The two-pack gives double the product. It promises fuller-looking lashes with long wear. The formula defines as well as volumizes. It suits buyers who want lashes only. The two-pack costs around twenty dollars. That is strong value per tube. The brush separates lashes cleanly. It layers without clumping. The long-wearing formula survives the day. This is the pick for mascara minimalists. Big By Definition is the tubing alternative worth knowing. Tubing formulas work differently. They form tubes around lashes. Water dissolves the tubes. Removal needs only warm water. No makeup remover is required. That suits sensitive eyes. Rubbing is minimized. Lash health improves. The two-pack format is generous. Twenty dollars for two tubes. Each tube lasts months. The value is excellent. The formula defines more than volumizes. Length is the strength. Separation is clean. No clumps form. The look is natural and polished. It suits professional settings. The tubing technology prevents smudging. Oily lids cause fewer issues. The tubes stay put. This is the practical choice. Size Up brings drama. Big By Definition brings reliability. Many people need both. The duo covers the practical side.
What Size Up Does for Lashes
Size Up focuses on visible volume. The brush loads lashes with product. Ultra Black gives intense color depth. Fuller lashes frame the eyes boldly. The formula builds without heaviness. One coat suits daytime. Two coats go dramatic. The effect is bigger, not spidery. Pair with the set's eye pencil for definition. The mascara anchors the whole set. It is the hero product for a reason. The Size Up formula earned its reputation quickly. Lengthening mascaras often sacrifice volume. Size Up delivers both. The brush is the secret. The bristles separate thoroughly. Each lash gets coated. The formula builds without clumping. Multiple coats stay clean. The black is intense. The lash line looks defined. The effect rivals false lashes. That is the marketing claim. User reviews support it. The hype is largely deserved. The formula suits straight lashes. The lift is noticeable. Curler use enhances it. The wear is solid. Flaking is minimal. The price is mid-range. Sephora's house brand offers quality. The value proposition is strong. Availability is the issue. Amazon stocks it inconsistently. The set solves that. Get it through Makeup Mania. The experience awaits.
Getting the Most From Sephora Mascaras
Wipe excess off the wand before applying. Wiggle at the roots for volume. Pull through to tips smoothly. Apply the second coat while wet. Do not pump the tube. Clean the wand neck regularly. Replace every three months. Store upright in a cool spot. These habits keep any mascara performing. Tubing versus traditional mascara is a key choice. Traditional formulas paint the lashes. They use waxes and pigments. Removal needs cleansers or oils. Rubbing is often required. Tubing formulas wrap the lashes. Polymers form tiny tubes. Warm water melts them. They slide off intact. The difference matters for lash health. Less rubbing means less breakage. Sensitive eyes prefer tubing. Contact lens wearers do too. Traditional formulas offer more drama. The waxes build volume. Tubing is more natural. Your priorities decide. Drama seekers choose traditional. Comfort seekers choose tubing. Many people own both. Use tubing for workdays. Use traditional for evenings. The Big By Definition duo covers tubing. Size Up covers drama. Together they handle everything. The choice is not exclusive. It is situational.
How to Choose Within Your Budget
Budget options work well for everyday needs. Mid-range products often deliver better ingredients and performance. Premium options suit those wanting the best formulas. Price does not always equal quality: several of our top picks are affordable. Set your budget first, then choose the best performer within it.
Final Thoughts
Choosing the right sephora size up mascara product comes down to matching formulas to your specific needs and routine, not chasing viral trends. Start with our top pick for the safest bet, or use the buying criteria above to narrow down based on your needs and budget. Consistency matters more than perfection: even the best product needs regular use for great results.
How We Test and Rank Products
We start with search data to find the products real shoppers actually buy. Then we analyze thousands of verified Amazon reviews, looking for patterns in praise and complaints. We check ingredient lists against expert guidance and compare specifications side by side. Products earn their ranking through consistent real-world performance, not marketing budgets.
Frequently Asked Questions
The standalone tube is not currently indexed on Amazon. The Makeup Mania set contains the full-size tube. That set is the verified way to buy it. Check Sephora stores for the single. Sephora controls its own distribution. Amazon gets limited stock. Sets like Makeup Mania are the reliable path.
Six full-size products plus a vanity bag. Luminizer, lip stain, eye pencil, Size Up mascara, lip plumper, and nail polish. All from Sephora Collection or Favorites. It is a complete makeup wardrobe. A full-size Size Up plus deluxe minis. The curation changes seasonally. The value always exceeds the price.
It is long-wearing but not labeled waterproof. It resists smudging through normal days. Heavy rain or tears may affect it. Choose waterproof formulas for those cases. No, they are different formulas. Big By Definition is a tubing mascara. Size Up is a traditional volumizing formula.
Three months is the standard guidance. Old mascara harbors bacteria. Performance also declines. Mark the open date on the tube. Replace on schedule. Tubes form around each lash. Warm water dissolves them. Removal needs no rubbing or remover.
Yes, use a light hand. The volumizing formula can overwhelm lowers. One thin coat is enough. Wipe the wand first. Clean smudges with a cotton swab. The set wins for value and discovery. Singles win for repurchasing favorites. Start with the set.