Absolutely, I'd be happy to recommend some budget-friendly lip serums that are effective and safe for your skin. Here are a few options:

1. "Revolution Skincare Hyaluronic Acid Overnight Hydrating Lip Mask": This product is enriched with hyaluronic acid, a molecule that can hold up to 1000 times its weight in water, making it an excellent hydrator. It also contains shea butter and squalane to nourish and soften the lips.

2. "e.l.f. Cosmetics Lip Exfoliator": This product is a two-in-one exfoliator and nourisher. It contains sugar granules to gently exfoliate dead skin cells and sweet almond oil, shea butter, and avocado oil to nourish the lips.

3. "Burts Bees Overnight Intensive Lip Treatment": This product is 100% natural and contains ceramides, which are lipid molecules that help retain moisture and protect the skin barrier. It also has natural emollients like sunflower seed oil and castor oil to nourish the lips.

4. "Milani Rose Butter Lip Mask": This product is infused with rose oil, coconut oil, and hyaluronic acid. Rose oil is known for its soothing and anti-inflammatory properties, coconut oil is an excellent moisturizer, and hyaluronic acid helps retain moisture.

5. "The Ordinary 100% Organic Cold-Pressed Rose Hip Seed Oil": While not specifically a lip serum, this product is a versatile and budget-friendly option. Rosehip seed oil is rich in fatty acids and antioxidants, which can help repair and rejuvenate the lips.

Remember, everyone's skin is different, so what works for one person might not work for another. Always do a patch test before trying a new product, and discontinue use if you notice any adverse reactions.